Define 800 pound Gorilla

A.  An overbearing entity in a specific industry or sphere of activity. A seemingly unbeatable presence   always to be reckoned with; whose experience, influence, and skill threatens to defeat competitors with little effort

B.  A very strong and/or menacing entity or issue that is obvious but not dealt with

C. The big, dominant factor regarding some topic


Abuse suffered in prison is an 800-pound gorilla that is undermining justice