During which era did the sanxingdui culture exist

the answer is d. tariffs were raised by america's trading partners after the smoot-hawley tariff act, decreasing exports, and declining job rates.

which time period is this? or is this story fictional, i'm going to need more info to answer this question

answer:   c. the drafting of common sense

explanation:

in the declaration of independence, thomas jefferson announced that every human being has “certain unalienable rights,” among which are those to “life, liberty, and the pursuit of " hope i