Which of the Following Is Most Likely True About Direct

Which of the following is most likely true about direct and digital marketing?

A) They are used to sell goods to an undifferentiated market segment.
B) They build customer engagement and constitute a complete model for doing business.
C) They remain unaffected by the rapid growth of technologies.
D) They are inconvenient and lengthen the process for most buyers.
E) They are rarely used by companies as supplementary channels.