例如：Both the number and the percentage of people in the United States involved innonagricultural pursuits expanded rapidly during the half century following the civil war,with someof the most dramatic increases occurring in the domains of transportation,manufacturing,andtrade and distribution.
What can be inferred from the passage about the agricultural sector of the economy after the CivilWar?
A)New technological developments had little effect on farmers.
B)The percentage of the total population working in agriculture declined.
C)Many farms destroyed in the war were rebuilt after the war.
D)Farmers achieved new prosperity because of better rural transportation.
