Find the intersection of two lists in linq?

Question

I have list of int A,B. i like to do the following step in linq

list c = new List();

for (int i = 0; i < a.count; i++)
{
    for (i         


        

Answer 1

Produce a list c containing all elements that are present in both lists a and b:

List c = a.Intersect(b).ToList();