Correct Option: B. A snake is discovered in the roof of the school building Detailed Explanation: In Chapter 5 of "The Lekki Headmaster," the discovery of a snake in the roof of the school building serves as a pivotal moment that escalates the tension among the characters. Here’s a step-by-step breakdown of why this event is significant:

1. Immediate Shock and Fear: The presence of a snake naturally incites fear and panic among the students and staff. Snakes are often associated with danger and unpredictability, which heightens the emotional stakes in the narrative. This fear can lead to chaos, as characters react instinctively to the threat.
2. Symbolism of the Snake: In literature, snakes often symbolize hidden dangers or underlying issues. The snake in the roof could represent deeper problems within the school environment, such as neglect, lack of safety, or the need for better management. This symbolism adds layers to the narrative, prompting characters to confront not just the immediate danger but also the broader implications of their situation.
3. Character Reactions: The discovery of the snake allows for the exploration of character dynamics. Different characters may react in various ways—some may be brave and try to handle the situation, while others may panic or flee. This can reveal their personalities, strengths, and weaknesses, thereby deepening character development and relationships.
4. Plot Development: This event serves as a catalyst for further developments in the story. The tension created by the snake can lead to conflicts among characters, decisions about how to handle the situation, and potential consequences that affect the school community. It propels the narrative forward, making it a crucial moment in the plot.
5. Community Response: The discovery of the snake may also prompt a response from the wider community, such as parents or local authorities, which can introduce new characters and subplots. This can further complicate the situation and add to the tension, as the characters must navigate not only their immediate fears but also the reactions of those outside the school.

Why Other Options Are Weaker:

• A. A new student arrives at the school: While the arrival of a new student can introduce new dynamics and potential conflicts, it typically does not evoke the same level of immediate fear or urgency as the discovery of a snake. This event is more about personal relationships and integration rather than a direct threat.
• C. The headmaster announces a surprise inspection: A surprise inspection can create tension, particularly among staff who may feel unprepared. However, it lacks the visceral fear associated with a snake. The stakes are more about performance and accountability rather than a physical threat to safety.
• D. A school trip is planned to a local museum: Planning a school trip is generally a positive event that fosters excitement and anticipation. It does not inherently create tension or conflict among characters, making it less impactful in terms of heightening drama compared to the discovery of a snake.

Revision Summary:

• The discovery of a snake in the school roof heightens tension due to immediate fear and panic.
• It symbolizes deeper issues within the school environment, prompting character development and conflict.
• The event serves as a catalyst for plot progression, affecting the entire school community.
• Other options, while potentially significant, do not evoke the same level of urgency or danger as the snake incident.