In this task, you will use your knowledge about language (and common sense) to determine what element the marked number refers to. The numbers are marked with two underlines around them, like: _ number _. Your answer should be chosen from the given text, and should not contain other words.

Commander T'Pol: Captain !
Captain Jonathan Archer: You think I 've lost my mind ?
Commander T'Pol: I 'm not certain your mind is the _ one _ making these decisions .
mind