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:
a
Explanation:
an adverb is an adjetive of a verb
The answer is whisper: shout.
Hope this helps!!
The answer is B. People of that time, Jews, thought of the Samaritans as 'dirt people'...they had a word for it but I cannot think of it at the moment.