Evaluate the following program and choose the correct alternative: The program declares variables x and y with the values 0 and 1, respectively. T...

Evaluate the following program and choose the correct alternative:

The program declares variables x and y with the values 0 and 1, respectively.
The program reads an integer value from the standard input and stores it in the variable x.
The program enters a loop that multiplies the value of y by the value of x and decrements the value of x by 1 until x is less than or equal to 1.
The program prints the value of y on the screen.
a) For the input 3, the output will be 9.
b) For the input 2, the output will be 4.
c) For the input 5, the output will be 120.
d) For the input 4, the output will be 20.
e) For the input 4, the output will be 100.