Can you please anwser these C++ questions, the questions apparentley do have anwsers because I anwsered no correct anwsers for some and I got them wrong.

1) 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. 48

2) When parameters are passed between the calling code and the called function, parameters and arguments are matched by:

a. they are not matched up at all b. their names c. their data types

3) What is the value of choice after the following statements?

void getChoice(int& par_choice, in par_count);

int choice, count=3;

getChoice(choice, count);

void getChoice(int& par_choice, in par_count)

{

if(par_count<0)

par_choice =0;

if(par_count = 0)

par_choice=-1;

else

par_choice=99;

return;

}

a. -1

b. 3 c. 0