These are four requirements for marketing to occur which are:

All options are the four requirements>>>>>>>>>>>>>>>>>>>>>>

A and B ....................................

Option         A

Thank you 

All options                   .

(1) Two or more parties with unsatisfied needs,

(2) A desire and ability on their part be satisfied,

(3) A way for the parties to communicate, and

(4) Something to exchange.

options A ,B & D I believe must be part of it. However I guess C is not a must as we can promote a service without having a retail store

>>>>>>>>>>>>>>  A. an action sales group to be involved

ALL...........................................................

answer A _______________________

Correct Answer: a way for the parties to communicate