Commission is received as incentive pay by a sales person. The letter c is the first letter of commission.
c
c for commission
c for commission
c for commission
c for commission
c for commission
The first letter of a five letter word meaning big incentive pay received by a salesperson is 'B' for the word bonus.
C - commission
"c" as in commission
c for commission
I am assuming the word in question here is "commission", so that would be a C.
C for commission