Soru: What is the correct response to the question "What are you doing?" if you are reading a book?
A) I am fine, thank you.
B) I am reading a book.
C) My name is Alex.
D) I like to read.
Çözüm: The question "What are you doing?" asks about your current activity. The correct response should describe what you are doing at the moment. Therefore, the answer is B) I am reading a book.