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The correct answer is:  [C]:  "future" .
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Note the:  "will" in front of the verb, "produce".  This indicates the "future tense" ; as in something "will" happen (i.e. "at a later time"). 
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Characters: Kate, Darby, Tracy, Mr. Jacks
Setting: takes place in an airplane at night.
Purpose: I think the purpose it's to tell how Kate is reacting inside the airplane before it gets in an accident with no food when she is trying to scape....
Conflict: all the passengers got trapped on the airplane at night wit no supplies.
rising action: the moment that the story says "She ran past one plane after another. They were all parked in the hangar, just as they had been the day the force fields came down around the airport, trapping fifteen hundred people inside. The force fields seemed to be electromagnetic prisons, although no one knew for sure what they were made from or for what purpose. They appeared around cities and small towns, around farms and islands, and even around tiny villages in the middle of Africa. They were everywhere—and nobody knew who put them there."
Climax: when she finally scape from the airplane, thanks to a space bellow the mirror.
Resolution conflict: She scape from the airport but she fell fear and guilty because on the back of the mirror that she scape says " Use this to get out, from Kate" so she and Mr. Jacks were the only ones how scape.
I hope this help : )