What do all community have in common

Asap which of the following fabrics can look cheap and fake onstage because of the way it reflects light from the stage lights? polyester cotton satin silk

Gainsboroughs portraits ridicule and aristocracy

Suppose that you are in a room with 3 doors and a crack in the ceiling for light. that is all. the doors each have a sign on them that says what there is behind them. door #1. a pool of corrosive acid. door #2. a crocodile that hasn't eaten in 8 months. door #3. a solar "oven". a giant lens that focuses all the sunlight at the entrance of the door. you must choose a door, which door do you choose?