Advertising Agencies

Advertising agencies

A) usually specialize in one particular type of work, such as media buying, sales promotion planning, or website design.
B) were traditionally paid based on a percent of the sales they achieved, but now the trend is toward a commission based on 15 percent of media purchases.
C) vary in size, but the largest ones account for most of the billings.
D) All of the above are true.
E) None of the above are true.