Answer:
History? I can help! Well I can try to help but first of all: elimination. Get rid of D and C, which leaves you with B and A. A and B are good answer choices but if I we're you I'd probably chose B if it's in the books (or ebooks) but if it's not A is your answer.
D. American political culture will continue to change over time.
3100 bc, 15 bce, 3 ce, 476 ad, 1215, 2000