In Practice,the Channel Manager Is Usually Not Able to Choose

In practice,the channel manager is usually not able to choose an optimal channel structure in the strict sense of the term for all of the following reasons except:

A) He/she is often unable to know what all of the alternative structures are.
B) Maximizing long-term profits can be achieved with a number of alternative channel structures.
C) The time involved would often be prohibitive.
D) Precise methods generally do not exist for calculating the payoffs associated with each of the alternative structures.
E) The costs involved are very high.