A tv company charges a one-time installation fee and a monthly service charge. The total cost is modeled by the function y = 99x + 15 Which statement represents the meaning of each part of the function?
A. x is the total cost, y is the number of months of service, $99 is the installation fee, and $15 is the service charge per month.
B. y is the total cost, x is the number of months of service, $15 is the installation fee, and $99 is the service charge per month.
C. x is the total cost, y is the number of months of service, $15 is the installation fee, and $99 is the service charge per month
D. y is the total cost, x is the number of months of service, $99 is the installation fee, and $15 is the service charge per month.