Question

if X ={ A,B,C,D} A ={B,C, D,} and B = {B,D, A,C}which one is the proper subset of X ?​

Answer 1

Answer:

Step-by-step explanation:

B would be the proper subset as it contains all possible letters in the set of X which are A, B, C, D

Answer 2

Answer:

according to me x =[A,B,C,D] , this is proper subset of x.