According to the U.N. Food and Agricultural Organization, how much will Zimbabwe’s cereal production drop from last year

A．The Zimbabwe government lacks hard currency.
B．White owners occupy about 1/3 of the country's productive land.
C．The urban poor and low-income residents of southern and eastern Zimbabwe suffered most from the food shortage.
D．The government wants to exchange the white-owned land with money.

A．500,000.
B．100,000.
C．250,000.
D．50,000.