Write a Cost Function for the Problem $\$ 27$ For the Basic Service Plus

Multiple Choice

Write a cost function for the problem. Assume that the relationship is linear.
-A cable TV company charges $\$ 27$ for the basic service plus $\$ 8$ for each movie channel. Let $C(x)$ be the total cost in dollars of subscribing to cable TV, using $x$ movie channels.

A) $C(x) =27 x+8$
B) $C(x) =8 x-27$
C) $C(x) =27 x-8$
D) $C(x) =8 x+27$