C $40.$ Which statement best explains the research findings about using two$-$sided messages to communicate with consumers?

A$)$ Two$-$sided messages are widely used and are very effective in reaching target audiences.

B$)$ Two$-$sided messages are cost$-$prohibitive.

C$)$ Two$-$sided messages can be quite effective, yet marketers rarely use them.

D$)$ Two$-$sided messages are no different from one$-$sided messages and are used