Explanation:

The poem is about what a child wants to know about his teachers. The child is curious and eager to understand more about his teachers and their role in his education. The poem expresses the child's desire to know more about his teachers and their teachings.

Key Points:
- The poem focuses on the child's curiosity about his teachers.
- The child wants to know what his teachers do when they are not teaching him.
- The child wonders if his teachers have families and what they do at home.
- The child is curious about the personal lives of his teachers and wants to know more about them.
- The child wants to understand the motivations and inspirations behind his teachers' teachings.
- The child is eager to learn from his teachers and wants to know how they acquire knowledge and wisdom.
- The child is interested in the experiences and stories that his teachers can share with him.
- The poem highlights the child's admiration and respect for his teachers.
- The child recognizes the importance of education and appreciates the role that his teachers play in his learning journey.

Conclusion:

In conclusion, the correct answer is option C, which states that the poem is about what a child wants to know about his teachers. The poem portrays the child's curiosity and eagerness to understand more about his teachers and their teachings. It emphasizes the child's admiration for his teachers and their role in his education.