public static void AddRider(ref InsurancePolicy p)
{
Console.WriteLine("No.\t\t\t\tDesc\t\t\t\tAdditional Premium\t\t\t\tAdditional Payout\t\t\t\t\n==============");
foreach (Rider r in p.AvailableRider)
{
Console.WriteLine("No.{0}\t\t\tDesc{1}\t\t\tAdditional Premium{2}\t\t\tAdditional Payout{3}\t\t\t\n==============", r, r.Desc, r.AdditionalPremium, r.AdditionalPayout);
}
int option = Convert.ToInt16(Console.ReadLine());
p.AddRider(p.AvailableRider[option]);
}