During the Era When Mass Circulation Magazines and Network TV

Multiple Choice

During the era when mass circulation magazines and network TV were dominant, the most common measure of efficiency was determined by using:

A) the cost per hundred formula (CPH) .
B) the last in, first out formula (LIFO) .
C) the first in, first out formula (FIFO) .
D) the cost per thousand formula (CPM) .
E) the cost per thousand interested formula (CPMI) .