In this task, you need to answer the given multiple-choice question on the physics. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Example Input: Problem: aaron will jog from home at 2 miles per hour and then walk back home by the same route at 4 miles per hour . how many miles from home can aaron jog so that he spends a total of 3 hours jogging and walking ? 
Options: a ) 5 , b ) 7 , c ) 3 , d ) 9 , e ) 10
Example Output: c

Example Input: Problem: a 70 cm long wire is to be cut into two pieces so that one piece will be 2 / 3 th of the other , how many centimeters will the shorter piece be ? 
Options: a ) 35 , b ) 20 , c ) 28 , d ) 36 , e ) 30
Example Output: c

Example Input: Problem: a can give b 60 meters start and c 200 meters start in a kilometer race . how much start can b give c in a kilometer race ? 
Options: a ) 148.94 , b ) 148.13 , c ) 148.22 , d ) 111.0 , e ) 111.12
Example Output:
a