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: frank the fencemaker needs to fence in a rectangular yard . he fences in the entire yard , except for one full side of the yard , which equals 40 feet . the yard has an area of 200 square feet . how many feet offence does frank use ? 
Options: a ) 14 , b ) 47 , c ) 50 , d ) 180 , e ) 240
Example Output: c

Example Input: Problem: a number when divided by 6 leaves a remainder 3 . when the square of the same number is divided by 6 , the remainder is 
Options: a ) 0 , b ) 1 , c ) 2 , d ) 3 , e ) 4
Example Output: d

Example Input: Problem: find the area of the quadrilateral of one of its diagonals is 20 cm and its off sets 9 cm and 6 cm ? 
Options: a ) 188 cm 2 , b ) 150 cm 2 , c ) 168 cm 2 , d ) 198 cm 2 , e ) 987 cm 2
Example Output:
b