using System;

public class Program

{

    public static void Main()

    {

        C c = new C();

        if (c != null && c.M(out object obj0))

        {

            obj0.ToString();

        }

​

        if ((c != null && c.M(out object obj1)) == true)

        {

            obj1.ToString();

        }

​

        if ((c != null && c.M(out object obj2)) is true)

        {

            obj2.ToString();

        }

​

        if (c?.M(out object obj3) == true)

        {

            obj3.ToString();

        }

​

        if (c?.M(out object obj4) ?? false)

        {

            obj4.ToString();

        }

    }

}

​

public class C

{

    public bool M(out object obj)

    {

        obj = new object();

        return true;

    }

}