Answer:
They have helped in providing relief materials and support
Explanation:
In the aftermath of Hurricane Maria, many people like Sonia Negrón Bell with friends and relatives in Puerto Rico have done a lot to offer their support. This support include provision of different materials such as food, shelter, clothing and generators.
The hurricane brought about power outage in the region affected which was the reason why generator sets were provided as an alternative.
True. People burn fossil fuels to create heat and electricity for our homes and other buildings.
Your answer is B as "It" is the pronoun and subject in your sentence.
