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

Input: Consider Input: Problem: a cubical block of metal weighs 5 pounds . how much will another cube of the same metal weigh if its sides are twice as long ? 
Options: ['a ) 48', 'b ) 40', 'c ) 24', 'd ) 18', 'e ) 12']

Output: b


Input: Consider Input: Problem: the ratio of the volumes of two cubes is 216 : 343 . what is the ratio of their total surface areas ? 
Options: a ) 81 : 12 , b ) 31 : 36 , c ) 81 : 22 , d ) 8 : 19 , e ) 1 : 11

Output: b


Input: Consider Input: Problem: the area of a triangle is with base 3 m and height 4 m ? 
Options: a ) 4 m 2 , b ) 6 m 2 , c ) 18 m 2 , d ) 19 m 2 , e ) 12 m 2


Output: b