Markus Works at a Call Centre for Sprint Long-Distance Service

Markus works at a call centre for Sprint long-distance service.If you want to change your long-distance carrier to Sprint, you can call him on the telephone, and he will sell you Sprint services and offer you a menu of "packages" to meet all your long-distance needs.What term best describes Markus role at Sprint?

A) detail salesperson
B) order desk clerk
C) service salesperson
D) wholesale salesperson
E) order getter