The part of the play which explains the outcome is referred to as the _____. ? is it

climax ?

exposition ?

plot ? or

resolution?

Verified Answer :

That would be Dénouement : a French term that translates literally to untying, unravelling or extrication. Example would be a murder mystery where the detective reveals the killer - the climax - and then explains how he figured out the case - the dénouement. 
So your answer 
would be Resolution -  another word for dénouement
.

The answer is RESOLUTION