TOEFL Listening: ETS-TOEFL听力机经 - C0TT393N6UZCWM18P$

What happened if students were unable to solve the math problem they chose? A. They were given a clue to the solution by the teacher. B. They asked for assistance from other students. C. The teacher gave them a different problem to work on. D. The teacher asked another group to work on the problem.