Returning two lists in C#

Question

I have been researching this for a while now, and am still unsure on how to implement and what is the best way to return two lists from a separate method?

I know the

Answer 1

A better practice IMO would be passing two lists to your desired method and initializing / assigning them from within the method itself. Example:

public static void Method2(int[] arr, List list1, List list2)
{
    list1 = arr.OfType().ToList();
    list2 = arr.OfType().ToList();
}