They ran up the hill in the heavy rain. let's label the parts oof the sentence
They-subject
ran-verb
ran up the hill-predicate
So they is being used as the subject
I believe it would be the first option, "periods of uncertainity"
Answer:
B.
Explanation:
It most clearly discussed the meaning of the text
Answer: the purpose is to voice any opinion in a respectable manner about the claim
Explanation: