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: what is the perimeter of a square field whose diagonal is 8 √ 2 ? 
Options: a ) 82 m , b ) 32 m , c ) 27 m , d ) 26 m , e ) 76 m
Example Output: b

Example Input: Problem: if the area of a square with sides of length 5 centimeters is equal to the area of a rectangle with a width of 4 centimeters , what is the length of the rectangle , in centimeters ? 
Options: a ) 4 , b ) 8 , c ) 12 , d ) 7 , e ) 18
Example Output: d

Example Input: Problem: the area of a circular field is 13.86 hectares . find the cost of fencing it at the rate of rs . 4.50 per metre . 
Options: a ) 2399 , b ) 3888 , c ) 2999 , d ) 5940 , e ) 2888
Example Output:
d