I believe the answer would be B, $14.17
Gives some unneeded and unwanted information like the cost of a ticket in Los Angeles. But there are three important things. The cost of a ticket in New York and the cost of the ticket in Atlanta. What's the third? The question.
The question tells us to do this:
cost of ticket in NY - Cost of ticket in Atlanta
which is
28.59 - 14.42
This equals
14.17
Which is how much more a NY ticket costs than an Atlanta ticket.
Hope this helps.