True but you can use them for other things as well. :)
Considering the purpose of most propaganda, C) should be most wary of in this footage i.e; the bias present in propaganda materials.
Answer: I dont see a question
Explanation:
Use a pair of commas in the middle of a sentence to set off clauses, phrases, and words that are not essential to the meaning of the sentence. Use one comma before to indicate the beginning of the pause and one at the end to indicate the end of the pause.