Manufacturer's reps and distributors are both outsourced salespeople for a company. In what way is a manufacturer's rep different from a distributor?

a$.$ A manufacturer's rep does not keep an inventory of products, while a distributor does.

b$.$ A manufacturer's rep does not sell directly to contractors, while a distributor does.

c$.$ A manufacturer's rep sells directly to contractors, while a distributor does not.

d$.$ A manufacturer's rep keeps an inventory of products, while a distributor does not.

e$.$ A manufacturer's rep is a type of field rep while a distributor is an inside salesperson.