Which One of the Following Is Correct in Regard to the Continuum

Which one of the following is correct in regard to the continuum of sales jobs and their complexities?

A) Order Sales Clerks have a less complex job role and they are considered an order getter
B) Top Sales Executives have a complex job role and they are considered order takers
C) Key Account Reps have a less complex job role and they are considered order getters
D) Senior Reps have a complex job role and they are considered order getters
E) Merchandisers have a less complex job role and they are considered order getters