Joaquim Has New Babies at Home, So He Cares Only

Multiple Choice

Joaquim has new babies at home, so he cares only about diapers and wipes. Joaquim's preferences are represented by U(D,W) = DW, where D is the number of diapers and W is the number of wipes that Joaquim purchases. Joaquim's preferences can also be represented by this utility function:

A) U(D,W) = D^0.5W^0.5
B) U(D,W) = D^0.5 + W^0.5
C) U(D,W) = D + W
D) U(D,W) = 0.5D + 0.5W