Synonym of ECHELON

Answer: Option A

Rank : a position in the hierarchy of the armed forces.
Opponent : someone who competes with or opposes another in a contest, game, or argument.
Follower : a person who supports and admires a particular person or set of ideas.
Identify : establish or indicate who or what (someone or something) is.
Echelon : a level or rank in an organization, a profession, or society.

Synonym of Echelon is Rank