PLEASE HELP ME!!!! BRAINLEST FOR ANYONE WHO HELPS
Which situation presents an example of a proportional function?
A. A game rental company charges $3.50 per game.
B. An art studio charges a registration fee of $25, plus a monthly fee of $40.
C. The temperature in the morning was 56 degrees and it increased by 2 degrees every hour.
D. A pizza parlor charges $5 for a small cheese pizza, plus $2 for each additional topping.