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: the side of a rhombus is 24 m and length of one of its diagonals is 18 m . the area of the rhombus is ? 
Options: a ) 410.47 , b ) 403.47 , c ) 420.47 , d ) 400.47 , e ) 300.47

Output: d


Input: Consider Input: Problem: the ratio of radius of a circle and the side of a square is 2 : 9 . find the ratio of their areas : 
Options: a ) 2 : 1 , b ) 4 : 7 , c ) 8 : 77 , d ) 4 : 81 , e ) none

Output: d


Input: Consider Input: Problem: the length of a rectangle is halved , while its breadth is tripled . wa tis the % changein area ? 
Options: ['a ) 34 %', 'b ) 45 %', 'c ) 50 %', 'd ) 60 %', 'e ) 67 %']


Output: c