Neil started a stamp collection with 12 stamps. Every week, he adds 4 more stamps to the collection. Which function f represents the relationship between the number of stamps (s) and the number of weeks (w)? A. s = f(w) = 12 + 4w
B. w = f(s) = 12s + 4
C. s = f(w) = 12 + 4s
D. w = f(s) = 12w + s
E. s = f(w) = s – 12