The Problem of Determining for Whom to Produce Exists Because

The problem of determining for whom to produce exists because:

A) government regulations prevent firms from producing the kinds of goods that consumers want.
B) a decision that one person or group will receive a good or service usually means that another person or group will not.
C) taxes on firms make it more costly for them to produce all the goods that people want.
D) taxes on consumers make it more difficult for them to buy all the goods they want.