Whether Studying the Size of the U

Whether studying the size of the U.S. economy or the number of children a couple will choose to have, the unifying concept is that wants are:

A) limited, resources are limited, and thus choices must be made.
B) unlimited, resources are limited, and thus choices must be made.
C) unlimited, resources are limited to some but not to others, and thus some people must make choices.
D) unlimited, resources are limited, and thus government needs to do more.