All of the Following Are Factors Required for Marketing to Occur

All of the following are factors required for marketing to occur except which?

A) a desire and ability on the part of two or more parties (individuals or organizations) to be satisfied
B) something to exchange between two or more parties (individuals or organizations)
C) two or more parties (individuals or organizations) with the same wants
D) two or more parties (individuals or organizations) with unsatisfied needs
E) a way for the parties (individuals or organizations) to communicate