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

Ex Input:
Problem: 30 square stone slabs of equal size were needed to cover a floor area of 50.7 sq . m . find the length of each stone slab ? 
Options: a ) 130 cm , b ) 767 cm , c ) 88 cm , d ) 666 cm , e ) 776 cm

Ex Output:
a


Ex 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

Ex Output:
c


Ex Input:
Problem: the size of a flat - screen television is given as the length of the screen ’ s diagonal . how many square inches greater is the screen of a square 28 - inch flat - screen television than a square 25 - inch flat - screen television ? 
Options: ['a ) 79.5', 'b ) 89.3', 'c ) 85.5', 'd ) 75.4', 'e ) 72.5']

Ex Output:

a