Correct Option: B. He encounters a snake in the roof, symbolizing underlying dangers. Detailed Explanation: In Chapter 5 of "The Lekki Headmaster," the protagonist's encounter with a snake in the roof serves as a pivotal moment that significantly alters his perspective on his environment. This event is rich in symbolism and meaning, which contributes to the overall narrative and character development.

1. Symbolism of the Snake:
2. The snake is often associated with danger, deceit, and hidden threats in literature. In this context, the snake represents the underlying issues and challenges that the protagonist has been ignoring or has been unaware of in his environment. It serves as a wake-up call, prompting him to confront the realities of his surroundings rather than remaining in a state of complacency.
3. Turning Point in Perspective:
4. Prior to this encounter, the protagonist may have had a more naive or simplistic view of his environment, possibly seeing it as a safe and predictable place. The sudden appearance of the snake forces him to recognize that there are dangers lurking beneath the surface. This realization can lead to a more mature understanding of his role as a headmaster and the complexities of the school environment he oversees.
5. Emotional and Psychological Impact:
6. The shock of encountering the snake can evoke a range of emotions, including fear, anxiety, and a sense of urgency. This emotional response can catalyze a change in the protagonist's behavior and decision-making. He may become more vigilant and proactive in addressing issues within the school, leading to personal growth and development.
7. Foreshadowing Future Events:
8. The snake encounter may also foreshadow future challenges that the protagonist will face. It sets the stage for a narrative that explores themes of danger, responsibility, and the need for vigilance in leadership. This moment can be seen as a precursor to more significant conflicts or revelations that will arise later in the story.

Why the Other Options Are Weaker:

• A. He discovers a hidden treasure in the school:
• While discovering a treasure could be exciting and lead to positive changes, it does not carry the same weight of urgency or danger as the snake encounter. A treasure might symbolize opportunity, but it lacks the depth of the snake's symbolism regarding hidden threats and the need for awareness.
• C. He receives an unexpected visit from an old friend:
• An unexpected visit from a friend could provide emotional support or nostalgia, but it does not inherently challenge the protagonist's understanding of his environment. This option lacks the transformative impact that the snake encounter has on his perspective.
• D. He is given a promotion at work:
• A promotion might signify recognition and success, but it does not necessarily lead to a deeper understanding of the protagonist's environment. It could even reinforce a sense of complacency rather than prompting critical reflection on the challenges he faces.

Revision Summary:

• The snake symbolizes hidden dangers and challenges in the protagonist's environment.
• This encounter serves as a turning point, prompting a shift in perspective and increased awareness.
• The emotional impact of the snake encounter catalyzes personal growth and proactive behavior.
• Other options (treasure, friend, promotion) lack the depth and urgency of the snake encounter, making them less significant in terms of character development.