using System;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var arrayOfStrings = new string[] { "a", "b", "c" };

        bool anyElementAInArray = arrayOfStrings.Any(item => item == "a");    // true

        bool anyElementDInArray = arrayOfStrings.Any(item => item == "d");   // false

        Console.WriteLine(anyElementAInArray);

        Console.WriteLine(anyElementDInArray);

    }

}