A couple decides to have three children. Let A define the event that the couple has at least 1 girl. What are the possible outcomes for this event? (G=girl, B=boy) O {GBB, BGB, BBG} O {G, BG, BBG} O {BBB, BBG, BGB, GBB, GGB, GBG, BGG, GGG} O {GGG, GGB, GBG, BGG, GBB, BGB, BBG} O {G, GG, GGG}