Yes, "b" is correct.
The verb in that place cannot be in main verb form (a, c, or d) because "used" is the main verb of the sentence. This verb form needs to be a participle (verbal adjective) in order to modify the subject, "Romans."
In the sentence: The Romans,too,----- ceremonial dancing to Italy from Greece, used it in theatrical performances. The answers are: a.Have brought, b.having brought, c.brought, d. had brought. I think the answer is b. having brought but am not sure. If this is wrong, Why?
2 answers
That's what I thought but wasn't sure. Thank you.