which of the following is the least expensive to make? printed catalog mailed nationally radio commercial…

which of the following is the least expensive to make? printed catalog mailed nationally radio commercial during prime time email campaign sent to a mailing list commercial run on a national network
Answer
Brief Explanations:
Printing and national - mailing of a catalog has printing and postage costs. Radio commercials during prime time are expensive due to high demand for airtime. Commercials on national networks are very costly because of wide viewership and high production values. An email campaign sent to a mailing list has relatively low costs as it mainly involves digital creation and distribution, with no physical or high - cost airtime expenses.
Answer:
email campaign sent to a mailing list