What objection, query or concern could a consumer have relating to that product/service before purchasing?

Personal selling involves an understanding of how to handle objections of potential customers/buyers. Consider a product/service that could be sold through personal selling (through a sales person). 

 

1. What objection, query or concern could a consumer have relating to that product/service before purchasing?

 

2. How could a salesperson overcome that objection or answer the query or concern effectively for the consumer?