Which of the following forms of punctuation breaks up the sentence with potentially longer, less essential bits of information?
a. parentheses
b. brackets
c. comma
d. dash

a. parentheses, just did the quiz on credit recovery

A. parentheses

Explanation:

When you put parentheses into a sentece this is to expand on a matter that could not be critical for the sentence, but gives more information to understand it better, you can read the sentence without the information inside the parentheses but if you read it with that information you have a deeper understanding of what it´s been said.

the answer should be d) he was one of those young thousands who greeted the war with a certain amount of relief, welcoming the liberation from webs of tangled emotion" since it is the best option because it shows his desire to free himself. 

hope this answer you! have a great day.