The selected response is B
public static int factorial(int n) {
if (n >= 1 && n <=12) {
if (n == 1)
return 1;
else
return n * factorial(n - 1);
}
else
return -1;
}
Explanation: The factorial method takes a single integer n as input. It checks if n is within the range of 1 to 12. If it is, it further checks if n equals 1. If it is indeed 1, it returns 1 as the factorial. Otherwise, it recursively calls itself with n decreased by 1, multiplying the result by n. If n is outside this range, the method returns -1 indicating the input is invalid.
This problem is a personal reflection and cannot be solved without discussing it after the individual provides input.