What is the basic assumption of mass marketing?

a$.$

It$$s unreasonable to understand what customers need and want, so it$$s best to use a one$-$size$-$fits$-$all approach to the marketing program.

b$.$

All customers in the market have similar needs and wants that can be reasonably satisfied with a single marketing program.

c$.$

No two customers have the same needs and wants but a single marketing program will still accomplish the firm$$s objectives.

d$.$

Customers can be grouped into segments based on needs and wants that can be reasonably satisfied by unique marketing programs.

e$.$

No two customers have the same needs and wants so a single marketing program will not work.