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

Example Input: Problem: the length of rectangle is thrice its breadth and its perimeter is 72 m , find the area of the rectangle ? 
Options: a ) 432 , b ) 212 , c ) 243 , d ) 992 , e ) 212
Example Output: c

Example Input: Problem: find the perimeter and area of a square of side 19 cm . 
Options: a ) 324 , b ) 361 , c ) 400 , d ) 441 , e ) 484
Example Output: b

Example Input: Problem: triangle atriangle b are similar triangles with areas 1536 units square and 2166 units square respectively . the ratio of there corresponding height would be 
Options: ['a ) 9 : 10', 'b ) 17 : 19', 'c ) 23 : 27', 'd ) 13 : 17', 'e ) 16 : 19']
Example Output:
e