The salesperson featured in the video, Dominic DeMarino, is a Pacemaker Defibrillator Sales Representative for Medtronic. As part of his job, he is often invited to large hospitals to participate during open$-$heart surgeries in order to ensure the company$$s medical devices are working properly. Based upon this description, Dominic could best be described as a$($n$)\_\_\_\_\_\_\_\_\_\_.$

a

key account manager

b

sales engineer

c

field sales force representative

d

inside sales representative

e

sales manager