\(x\) is a positive integer less than \(30,\) which of the following option correctly indicates the number of values of

[Gmat_mission]

\(x\) is a positive integer less than \(30,\) which of the following option correctly indicates the number of values of \(x\) for which \(\dfrac{x^2}{18}\) has \(2\) factors?

A. 0
B. 1
C. 4
D. 5
E. 7

Answer: B

Source: e-GMAT