Answer:
A
Explanation:
You have to times all of them to see the results. For example...
A. 48inches(6x8), 50inches(5x10), 48inches(12x4)
B. 42,50,48(42 is not within 45-50 inches so it can't be B)
C.48,40,48(40 is not within 45-50 inches so it can't be C)
D.42,48,50,48(42 is not within 45-50 inches so it can't be D)
meaning it's A