Analyze the following function and pick the correct answer.

Int Factorial$($int n$)\{$

result $=1$;

for $($int i $=1$; i $<=$n; i$++)$

$\{$

result$*=$i;

$\}$

return result;

$\}$

According to its return type, we can assume that the type of variable names "result" should be $..$

int

string

char

double