If you walk outside your door and look up you'll see that the sky is what's up. It made me put more than "the sky." But there ya go. That is what's up.
나는 공부하고 있습니다.
Hope this helps,
(NOT MY WORDS TAKEN FROM A SOURCE)
The correct answer for the question that is being presented above is this one:
Discovering the intent involves the evaluation of the audience and purpose associated with the evidence. If you really want to know the purpose of the reason of a person in doing a thing, then you need to evaluate him or her.
Hope this helped!
:)