How resources are used is determined by people's . a. choices b. retail c. costs d. regulations

The correct answer is A.

The whole economic science is based on the fact that resources are scarce, and on how economic agent (households, business and public sector) need to decide how to allocate them to produce goods and services that will be used to satisfy their needs and desires. Allocations are determined by agent's choices, who interact in the markets, aiming to obtain the greatest benefit for themselves.

c- companies fail to take environmental protection into account. i think