The role which is not performed by a salesperson:

Reseller Staff incentives

The correct answer is Option 2 i.e. Reseller Staff incentives

Personal selling:

It means selling products personally. It involves oral presentation of message in the form of conversation with one or more prospective customers for the purpose of making sales. Companies appoint salesperson to contact prospective buyers and create awareness about the company’s product. Thus a salesperson plays three different roles 

Be persuasive

A service provider 

Be informative