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 .
According to the above context, choose the best option to answer the following question.
Question: What may be a plasuible fact about Jack ?
Options:
- Martha thinks he is irrelevent enough for her to leave without him .
 - He is someone that Martha deeply cares about .
 - Jack decided to leave Martha and the Doctor behind .
 - None of the above choices .


He is someone that Martha deeply cares about .