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: on the coordinate plane , points p and u are defined by the coordinates ( - 1,0 ) and ( 3,3 ) , respectively , and are connected to form a chord of a circle which also lies on the plane . if the area of the circle is ( 25 / 4 ) π , what are the coordinates of the center of the circle ? 
Options: ['a ) ( 1.5 , 1 )', 'b ) ( 2 , - 5 )', 'c ) ( 0,0 )', 'd ) ( 1 , 1.5 )', 'e ) ( 2,2 )']
Example Output: d

Example Input: Problem: smita was making a cube with dimensions 5 * 5 * 5 using 1 * 1 * 1 cubes . what is the number of cubes needed to make a hollow cube looking of the same shape ? 
Options: ['a ) 98', 'b ) 104', 'c ) 100', 'd ) 61', 'e ) 51']
Example Output: a

Example Input: Problem: if the sides of a triangle are 26 cm , 24 cm and 20 cm , what is its area ? 
Options: a ) 120 , b ) 772 , c ) 288 , d ) 266 , e ) 240
Example Output:
e