Teacher: First, mix the red liquid with the blue powder.
Tom: Excuse me, Teacher. Did you say 'red liquid' or 'blue liquid'?
Yukarıdaki diyaloğa göre, Tom'un sorusu ne amaçla sorulmuştur?
A) To express his opinion.
B) To ask for a repetition of information.
C) To change the experiment.
D) To tell a joke.