In x^2, 2 is?

A: a radical

B: a subscript

C: an exponent

D: an imaginary number

E: none of these

C. An Exponent

Step-by-step explanation:

It is C because the number being squared is called the base number. In this case the base number is x.

The exponent, the amount of times that the base number will be multiplying itself by is 2.

Therefore, in x^2, the 2 is the exponent.