Design a simple 3 door problem simulation

Game Describtion:

How it should look like

"Suppose you are on a game show, and you're given a choice of three doors. Behind one door is a car, behind the others, goats. You pick a door -say, No. 1 -- and the host, who knows what's behind the doors, opens another door say, No. 3 --which has a goat. He then says to you, "Do you want to pick door No. 2?" Is it to your advantage to switch your choice?" "Suppose you are on a game show, and you're given a choice of three doors. Behind one door is a car, behind the others, goats. You pick a door -say, No. 1 -- and the host, who knows what's behind the doors, opens another door say, No. 3 --which has a goat. He then says to you, "Do you want to pick door No. 2?" Is it to your advantage to switch your choice