To improve your understanding of an informational text, the question you should ask yourself as you read is:

The question to ask

is the text primary purpose to inform about the natural or social world?

To improve your understanding of an informational text, the question you should ask yourself as you read is:

"What is the text mainly about?"

This question will automatically lead you to the main idea of the text and you'll start understanding the context and it'll be much easier for you to deduce unknown words.

since it is asking for her reaction to elnora's trouble at school you can rule out any answers with a positive response (b). then you can rule out (d), this is because it does not show the mother's reaction but the daughter's response. that leaves you with two options (a) and (c), by looking at the options you can rule out (c) because it isn't referring back to elnora's issues at school.