Bill and Felicia both bake cookies for a party. Bill bakes 3 times as many as Felicia. Felicia bakes 24 fewer cookies than Bill. Bill bakes b cookies and Felicia bakes f cookies. What pair of equations can be used to determine the number of cookies Bill and Felicia bake?

A. b = 3f
f = b - 24

B. b = 3(f + 24)
f = b - 24

C. b = 3f
f = 24 - b

D. f = 3b
b = f - 24

PLEASE HELP ♡