Which of the Following Statements Is True

Which of the following statements is true?

A) Firms in consumer goods industries that are trying to sell to a large segment of the market generally favor a push strategy.
B) Mass communication is costlier for firms in consumer goods industries that are trying to sell to a large segment of the market.
C) Direct selling may be the only way to reach consumers in poor nations with low literacy levels.
D) Firms that sell industrial products or other complex products favor a pull strategy.