Context: The Doctor looked back when they made it , and saw that the ski lodge was gone . That was n\'t all , however : the mountain was now disappearing at about the same rate . " Where \'s Jack ? " asked Martha , worry in her eyes . " He \'ll be here , " said the Doctor .
Question: What may be a plasuible fact about Jack ?
Option 0: None of the above choices .
Option 1: Martha cares enough about him to be worried about his absence .
Option 2: Jack decided to leave Martha and the Doctor behind .
Option 3: Martha thinks he is irrelevent enough for her to leave without him .
Answer: 1