Question

please answer fast.
I will mark you as brainlist if you answer correctly.
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Answer 1

Answer:

A.{b,c,d}

Pls mark it as brainliest brother !

Answer 2

option B is correct .

kindly check the attachment for the stepwise solution and answer

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UNION :-

The union of two sets L and M is defined as the set of all the elements which is there in set L and set L . Denoted by => ∪

INTERSECTION :-

If two sets L and M are given then, their intersection consist of elements common to both L and M. denoted by => ∩