What is the output of the following function call?

//function body
int factorial(int n)
{
int product=0;
while(n > 0)
{
product = product * n;
n—;
}
return product;
}

//function call
cout << factorial(4);

a. 4
b. 0
c. 24
d. 48

b. 0

Computer Science & Information Technology

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