A photo print company charges the following prices: $1 per photo for orders of 20 photos or less, $0.75 per photo for orders between 21 and 40 photos, $0.50 per photo for orders greater than 40 photos. Write the correct function to represent the cost, C, in dollars, based on the number of photos, P.
A) C(P) = 1.00 if P ≤ 20, C(P) = 0.75 if 21 ≤ P ≤ 40, C(P) = 0.50 if P > 40
B) C(P) = 1.00 if P ≤ 20, C(P) = 0.75 if 20 < P ≤ 40, C(P) = 0.50 if P > 40
C) C(P) = 1.00 if P < 20, C(P) = 0.75 if 21 ≤ P ≤ 40, C(P) = 0.50 if P > 40
