What happens to the values of x and y in the second section of code? What is the purpose of the variable z in the second section of code?
a) x is incremented by 1 and y is decremented by 1; z is used as a temporary storage variable.
b) x and y remain the same; z is used to store the result of a calculation.
c) x is set to y and y is set to x; z is used to swap the values of x and y.
d) x is multiplied by y and stored in z; y is divided by x.
