I'm facing the problem to solve this quiz in C#. Please help!! And provide some answer.

Question

static __ Swap ____(ref T a, ref T b) {
T temp = a;
a = b;
b = ___ ;
____ a;
}
<T> a T return b temp

Answer 1

Try this:
static int Swap <T> (ref T a, ref T b){
T temp = a;
a = b;
b = temp;
return a;
}