A b or c

My name does not matter this is the story of what happend to me. one night as i fell asleep i awoke or at least i thought i awoke. i was in a dark room the wall's were made of steel. then a man stepped out of the shadow's. hi there my name is ace im am the host of this show. i asked what show. the dream show called a b or c. i will give you a pick of three door's. door a door b or door c and you will enter that door. i asked what's behind the door's. well when you pick a door there could be something good behind it or somthing bad. when inside you will be stuck in that area for a time then you will see me agian and you will pick another door. so sir door a b or c