Question

what is the power set of
A ={a,b,c,d}
please mention the correct answer!?​

Answer 1

[{a,}{b}{,c}{d}{a,b}{b,c}{c,d}{d,a}{a,c}{b,d}{a,b,c}{b,c,d}{c,d,a}{a, c, d}{d, b, a}{a, b, c, d}{}]