A and B are two sets such that n(A) = 12...

A and B are two sets such that `n(A) = 12, n(B) = 10, A nn B ne phi` and `B cancelsub A`.
The least possible value of `n(A Delta B)` is `"_____"`.

A

13

B

4

C

2

D

22

Verified by Experts

The correct Answer is:

B

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