Nick earns a monthly base pay plus commission working as a car salesman. The expression 1,600 + 1,200x models the amount he earns each month. Which THREE statements are correct?

A 1,200 represents Nick's base pay.1,200 represents Nick's base pay.
B 1,600 represents Nick's base pay.1,600 represents Nick's base pay.
C x represents the number of cars Nick sold.x represents the number of cars Nick sold.
D 1,200 represents the commission for each car.1,200 represents the commission for each car.
E 1,600 represents the commission for each car.

A x represents the number of cars Nick sold.

C 1,200 represents the commission for each car.
E 1,600 represents the commission for each car.