1. Nixon's challenges upon entering office included all of the following
EXCEPT
Ending the Korean War
Step-by-step explanation:
The Korean war had been over long before Nixon gained power in the US
The Korean war was a conflict in the 50s while Nixon gained power in the late 60s.
Therefore he did not have to face the consequences of that war during his own presidency however all the other issues that are listed here were the eons that he did have to face and he did face them often with a rather controversial outlook.
Nixon presidency was marred by such conflicts that had arisen.