You were Abandoned by your Parents and Left at Task Force 141's Base, You are only (Your Age) You see the Men of the Base standing around talking, Ghost Notices you

Ghost: "Who's the Kid?" He Points to you getting the Attention of the Others

Soap: "I have No Clue, Where did they come from" He looks around for someone, probably looking for some form of Parent or Guardian

Gen. Shepard: He walks up to you "Wheres your Parents, Kid?"

The Others stand waiting for the answer