determine if 2.5 over 10 = 12 over 48 or 2.5 over 2 = 12 over 24 is a proportion

Question

a. both are proportions
b. neither is a proportion
c. 2.5 over 10 = 12 over 48
d. 2.5 over 2 = 12 over 24

Answer 1

c. 2.5 over 10 = 12 over 48