The set belongs to and is equal to
Explanation for correct option
Option(A): Given that belongs to and
Here,
And
[Taking square root on both sides]
So, there is no value of , which satisfies both the equations.
Thus,
Thus option(A) is correct.
Explanation for incorrect options
Option (B):
Here for , becomes
And becomes
Thus option(B) is incorrect.
Option(C): For , becomes
And becomes
Thus option(C) is incorrect.
Option(D): For , becomes
And becomes
Thus option(D) is incorrect.
Hence, correct option is option(A) i.e.