Consider the Method Below, Which Implements the Exponentiation Operation Recursively

Consider the method below, which implements the exponentiation operation recursively. Select the statement that should be used to complete the method, so that it handles the special case correctly. public static double power(int base, int exponent)
{
If (exponent == 0)
{
_______________
}
Else
{
Reurn base * power(base, exponent - 1) ;
}
}

A) return 1;
B) return base;
C) return 0;
D) return 1 * power(base, exponent - 1) ;