Please help, I really need this

Which four of these developments were made under mongol rule during the pax mongolica? the extension of the grand canal in china the spread of christianity the spread of weapons that used gun powder the invention of new medicines the establishment of a postal system the invention of geometric models of lunar motion

What religion influenced the first persian empire as established by cuyrus the great?

All of the following programs were responsible for improving the quality of entertainment experienced by americans, except which? a national endowment for the arts b. the corporation for public broadcasting c. national endowment for the humanities d. department of housing and urban development