"An Objective of Firms Is to Maximize Profits

Multiple Choice

"An objective of firms is to maximize profits." This statement

A) has been proven by empirical testing to be always true.
B) is an assumption used by economists to predict the behaviour of firms.
C) is a normative statement and thus cannot be tested.
D) applies only to corporations.
E) is an unrealistic assumption,and therefore of little use to economists.