Way to refer back to an old random instance when a new one is already made?

This is my current code:

Console.WriteLine("\nWhat would you like to say?");
                    Console.Write("A. ");
                    p1r = p1rnd.Next(p1list.Count); //CHOICE A
                    Console.Write(p1list[p1r]);
                    Console.Write("B. ");
                    p1r = p1rnd.Next(p1list.Count); //CHOICE B
                    Console.Write(p1list[p1r]);
                    Console.Write("C. ");
                    p1r = p1rnd.Next(p1list.Count); //CHOICE C
                    Console.Write(p1list[p1r]);
                    p1choiceA = Console.ReadLine();

My issue is that, for example, I want to remove CHOICE A. Is there a way to refer to that, even if I already created a random instance for CHOICE C?

Generally, Is there a way to refer to an old instance after declaring a new one? Thanks for the help.