If A is a subset of B, then which one of the following is correct

If A subset of B ,then which one of the following is correct?

If A sube B, then which one of the following is not correct?

If (A-B)uu(B-A)=A for subsets A and B of the universal set U, then which one of the following is correct?

For non-empty sets A, B and C, the following two statements are given: Statement P:Ann(BuuC)=(AnnB)uuC Statement Q : C is a subset of A Which one of the following is correct ?

If A, B and C are subsets of a Universal set, then which one of the following is not correct?

For non-empty sets A, B and C, the following two statements are given: Statement P: A nn (B uu C)=(A nn B)uu C Statement Q: Cis a subset of A Which one of the following is correct?

If |a+b|= |a-b| , then which one of the following is correct?

Which one of the following is correct structure of 'B'?