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: a metallic sphere of radius 12 cm is melted and drawn into a wire , whose radius of cross section is 8 cm . what is the length of the wire ? 
Options: a ) 16 cm , b ) 24 cm , c ) 28 cm , d ) 36 cm , e ) 39 cm

Output: d


Input: Consider Input: Problem: the length of minute hand of a clock is 5.4 cm . what is the area covered by this in 10 minutes 
Options: a ) 15.27 , b ) 16.27 , c ) 17.27 , d ) 18.27 , e ) 19.27

Output: a


Input: Consider Input: Problem: the length of the bridge , which a train 150 m long and traveling at 45 km / hr can cross in 30 sec is ? 
Options: a ) 377 , b ) 225 , c ) 237 , d ) 245 , e ) 267


Output: b