In this task, you will be shown a conversation and a question. You need to answer the question and choose the correct option based on the conversation. "W" and "M" in the conversations stand for "woman" and "man".

M: You look unhappy, Mary. What happened? W: Oh, dad. I lost my keys., Question: Why is the girl unhappy? (A) Because her father lost the keys (B) Because she lost her keys (C) Because she lost her father's keys.
(B) Because she lost her keys