McVey's Propositions Imply That Manufacturers

McVey's propositions imply that manufacturers:

A) Need to better understand the role of all channel members.
B) Should always be looking for ways to motivate channel members.
C) Are unaware of or insensitive to the needs and problems of channel members.
D) Should confer with channel members prior to making any changes to the distribution process.
E) Do not adequately use the information and data provided by intermediaries.