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'.

Input: Consider Input: Problem: what is the maximum number of pieces of birthday cake of size 5 " by 5 " that can be cut from a cake 15 " by 15 " ?
Options: a ) 5 , b ) 10 , c ) 16 , d ) 20 , e ) 9

Output: e

Input: Consider Input: Problem: the length of the bridge , which a train 130 meters long and travelling at 45 km / hr can cross in 30 seconds , is ?
Options: a ) 288 , b ) 266 , c ) 245 , d ) 277 , e ) 211

Output: c

Input: Consider Input: Problem: a can give b 100 meters start and c 200 meters start in a kilometer race . how much start can b give c in a kilometer race ?
Options: a ) 111.12 m , b ) 221.12 m , c ) 271.12 m , d ) 611.12 m , e ) 191.12 m
Output: a