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 within the narrative. This event is significant for several reasons:

1. Symbolism of Danger: The snake is often associated with danger and fear in literature. Its presence in the school, a place meant for learning and safety, creates an immediate sense of unease among the characters and the readers. This symbolism heightens the stakes of the story, as it suggests that not everything is as safe as it seems.
2. Character Reactions: The discovery prompts various reactions from the characters, particularly the students and staff. Their fear and anxiety reflect the broader themes of vulnerability and the unexpected challenges that can arise in a seemingly normal environment. This reaction can lead to character development, showcasing how different individuals handle fear and crisis.
3. Plot Development: The snake incident serves as a catalyst for further events in the story. It may lead to increased scrutiny of the school’s environment, prompting characters to confront other underlying issues, such as neglect or mismanagement. This incident can also serve as a plot device to introduce new characters or conflicts, thereby enriching the narrative.
4. Foreshadowing: The snake's presence can foreshadow future dangers or conflicts that the characters will face. It sets a tone of suspense and unpredictability, suggesting that the story may take darker turns as it progresses.

Why Other Options Are Weaker:

• A. A mysterious figure is seen lurking around the school.
• While this option also introduces an element of suspense, it lacks the immediate physical threat that a snake represents. A lurking figure can be interpreted in various ways and may not evoke the same visceral fear as a snake, which is a tangible danger.
• C. The headmaster receives a threatening letter.
• This option introduces a psychological threat, which is significant but may not have the same immediate impact on the school environment as the discovery of a snake. A letter can be dismissed or ignored, whereas a snake requires immediate action and creates a sense of urgency.
• D. A major school event is abruptly canceled.
• The cancellation of an event can create disappointment and frustration, but it does not inherently introduce a physical threat or danger. This option may affect the emotional state of the characters but lacks the dramatic tension that the snake incident provides.

Summary of Key Points:

• The discovery of a snake in the school roof symbolizes danger and heightens tension in the story.
• Character reactions to the snake reveal themes of vulnerability and fear.
• The incident serves as a plot catalyst, potentially leading to further conflicts and character development.
• The snake foreshadows future dangers, setting a suspenseful tone for the narrative.

This thorough understanding of the significance of the snake incident in Chapter 5 will help you grasp the underlying themes and character dynamics in "The Lekki Headmaster."