i agree with narkissos. i was going to say that she was the one that said yes. i always wondered who the snitch would've been if judas had said no; but since he didn't we'll never know. i believe it had to be someone but not neccesarily judas to betray jesus, the same with mary, someone had be the babies mother and she was the one. as for adam i'm not sure which scenario would work. but as a bad son myself, and considering what we know about the condition called human, i think sometimes people just do stupid things.
and sometimes innocent people get hurt, i'm not sure whether adam was stupid or evil--but i prefer to think stupid because i understand that!!!