Well, since C is the only example where a positive thing happens, then it is certainly not a potential problem, so 'they can provide a lot of energy for people to use' is the correct answer. The other examples are problematic.
Answer:
the answer is C
Explanation:
because two-line poems—poems that make their point quickly
Answer:
C, Let the speaker finish, review the ground rules, and ask the group a new question.
Explanation: