\(A, B\) and \(C\) are three distinct single-digit positive numbers. If the units digit of \(A^2, B^2\) and \(C^2\) are

[Gmat_mission]

\(A, B\) and \(C\) are three distinct single-digit positive numbers. If the units digit of \(A^2, B^2\) and \(C^2\) are distinct perfect squares, then what is the number of possible values of \((A, B, C)?\)

A. 4
B. 8
C. 20
D. 48
E. 120

Answer: D

Source: e-GMAT