I would say
C) Simple yes/no questions.
Answer: Negative
Reason: Because the definition is “express discontent or sorrow over (something)” which is another of saying that someone is complaining or whining.
Using the formula:

Which is, 3.14 x 2^2 (radius is half of diameter)
Which equals 12.56.
Answer:
It means to search for multiple meanings to some words.
Explanation:
When people say to read between the lines, you have to look closely at the text. You have to think differently about meanings of words and sentences.
For example: "Johnny grinned. He passed the test! He laughed, but then he cringed, wincing."
This could be taken in different ways. You could say that he was happy he passed the test but because he was injured, he cringed when he laughed. However, you could also say that he laughed because he was happy he passed the test but he cringed because he remembered his grandma just died and he shouldn't be happy.
Really well written and definitely gives concrete detail as I can imagine this scene in my mind by just reading it.