karlfurt wrote:

E can be true as it can be false.

Since we are looking for something that must not be true, E it is.

Yes - That is the part I was missing. "beautiful cat" is a "floating set" that has an intersection with "irritating cat "set.

1) Now, "beautiful cat" can be a subset of "persian cat" and in that case E is flase.

2) But if you follow the my Venn diagram it can also be true.

Since it can be true or false, it is the answer.

OA is E. _________________

"Education is what remains when one has forgotten everything he learned in school."