Gary Has Just Been Granted Parole

Gary has just been granted parole. He served 7 of his 10 year sentence because he was mostly well behaved; he worked in the captain's office and got an accounting degree inside prison. When he is released, his partner doesn't want to see him and his parents won't let him stay with them until he gets a job and proves that he is no longer a criminal.
-More than half of all-male inmates are held in ______ institutions.​

A) minimum-security​
B) medium-security
C) maximum-security
D) super maximum-security