I need help with this question ASAP

Which groups of people most directly benefited from song innovations in the song dynasty‘s open border policy?

Now , use your research to decide what business is the best choice for this community. explain your choice in two to three sentences, using factual evidence to support your claim.

Which of the following people would a member of congress most likely contact for information on pending revenue legislation? a) a bureaucrat in a foreign government's revenue service. b) the host of a popular talk show c) the staff at one of the congressional support agencies d) athletes on a professional sports team form a major city