. Economist often say there is no such thing as a freelunch. What do economists mean when theysay such a thing?
A.
a. Peoplenever offer a lunch for free.
B.
b. Even ifsomeone literally offers you a free lunch, there is an opportunity cost to theresources that are used to produce your free lunch.
C.
c. Someresources cause significant negative externalities.
D.
d. Economists,in this case, are talking about common resources.