HELP thanks What happened as a result of Mansa Musa's hajj?

a
None of the choices
b
It increased West Africa's trade with other lands.
c
It caused Mali to go to war with Egypt.
d
It caused a decrease in West Africa's trade with other lands.

How did the agricultural marketing act of 1929 farmers? a. it fixed the prices of farm goods. b. it taxed the exportation of farm goods. c. it stabilized the prices of farm goods. d. it subsidized the importation of farm goods. e. it subsidized the purchase of farm equipment.