Between 1910 and today, the number of farmers in the United States __ dramatically as a result of ___ in farming in the twentieth century.

Between 1910 and today, the number of farmers in the United States __ dramatically as a result of ___ in farming in the twentieth century.

Between 1910 and today, the number of farmers in the United States _____________ dramatically as a result of ___________________ in farming in the twentieth century.

a. dropped; technological improvements
b. rose; technological improvements
c. dropped; technological declines
d. rose; technological declines


ANS: A