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: 34 . the side surface of a cylinder is rolled with a rectangle . if the height of a cylinder is 16 feet and the perimeter of the circular base . is 12 feet , what is the diagonal of the rectangle ? 
Options: ['a ) 16', 'b ) 20', 'c ) 18', 'd ) 22', 'e ) 21']
Example Output: b

Example Input: Problem: a circular ground whose radius is 15 metres , has a 1.2 metre - broad garden around it . what is the area of the garden in square metres ? 
Options: ['a ) 118.67', 'b ) 116.67', 'c ) 117.67', 'd ) 120.56', 'e ) 120.57']
Example Output: c

Example Input: Problem: find the perimeter and area of the rectangle of length 17 cm and breadth 13 cm . 
Options: a ) 221 cm 2 , b ) 211 cm 2 , c ) 231 cm 2 , d ) 236 cm 2 , e ) 241 cm 2
Example Output:
a