In this task, you need to provide the correct option for a given problem from the provided options.

Problem: ashley paid 5 dollars for 1 notebook and 1 pencil . if both prices were integers , how many pencils did ashley buy if she paid 93 dollars for the pencils and for 15 notebooks ?
Options: a ) 6 . , b ) 16 . , c ) 18 , d ) 21 , e ) 26
d

Problem: find the fraction which has the same ratio to 2 / 13 that 5 / 34 has to 7 / 48 ?
Options: a ) 240 / 1576 , b ) 240 / 1542 , c ) 240 / 1547 , d ) 240 / 1528 , e ) 240 / 1529
c

Problem: in a group of 100 cars , 37 cars do not have air conditioning . if at least 41 cars have racing stripes , what is the greatest number of cars that could have air conditioning but not racing stripes ?
Options: a ) 45 , b ) 47 , c ) 59 , d ) 51 , e ) 53
c