What is the power set of A=x,yA = \\{x, y\\}A=x,y?
emptyset,x,y\\{\\emptyset, \\{x, y\\}\\}emptyset,x,y
x,y,x,y\\{\\{x\\}, \\{y\\}, \\{x, y\\}\\}x,y,x,y
emptyset,x,y,x,y\\{\\emptyset, \\{x\\}, \\{y\\}, \\{x, y\\}\\}emptyset,x,y,x,y
x,y\\{\\{x\\}, \\{y\\}\\}x,y