Teacher:In this task, you are given a question containing a blank (_) and two options. You should pick the best option to answer the question. Please answer with "A" or "B".
Teacher: Now, understand the problem? Solve this instance: Tina thought that candles would help cover the smell in her apartment, but her mom recommended using coffee beans. She wouldn't leave the _ on while she went to work. (A) coffee beans (B) candles
Student: