When Economists Say There Is No Such Thing as a Free

Multiple Choice

When economists say there is no such thing as a free lunch,they mean that

A) we must pay money for everything we get.
B) it is against the law to accept goods or services without paying for them.
C) when we eat lunch,our time has no value.
D) each day we decide to eat lunch is another day we must pay out money.
E) every choice we make involves a trade-off.