Small Farmers and Herdsmen Who Comprise the Majority in Tropical

Small farmers and herdsmen who comprise the majority in tropical African countries

A) suffered most from the price collapse of the 1970s.
B) have been able to prosper in recent years.
C) have seen absolutely no increase in their yields despite the Green Revolution.
D) have found it necessary to take jobs in the cities.
E) have had to start guarding their fields because so many people are wandering through the countryside filled with hunger.