The Method Below Implements the Exponentiation Operation Recursively by Taking

question 17

Multiple Choice

The method below implements the exponentiation operation recursively by taking advantage of the fact that, if the exponent n is even, then xⁿ = (x^n/2) ². Select the expression that should be used to complete the method so that it computes the result correctly. public static double power(double base, double exponent)
{
If (exponent % 2 != 0) // if exponent is odd
{
Return base * power(base, exponent - 1) ;
}
Else if (exponent > 0)
{
Double temp = ________________________ ;
Return temp * temp;
}
Return base;
}

• A) power(base, exponent / 2)
• B) power(base, exponent / 2) * power(base, exponent / 2)
• C) power(base, exponent / 2) + power(base, exponent / 2)
• D) power(base, exponent) / 2

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