Considering the Global Situation in Land Used for Agriculture, Which

Considering the global situation in land used for agriculture, which of these facts is true?

A) Agricultural land per capita has increased since 1961.
B) Irrigated agricultural land per capita has increased slightly since 1961.
C) Maintaining present levels of irrigation is unlikely because of unsustainable withdrawals of groundwater.
D) Further increases in cultivated land area would slow climate change.
E) All of the above.