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: a rectangular tiled patio is composed of 126 square tiles . the rectangular patio will be rearranged so that there will be 2 fewer columns of tiles and 4 more rows of tiles . after the change in layout , the patio will still have 126 tiles , and it will still be rectangular . how many rows are in the tile patio before the change in layout ?
Options: ['a ) 5', 'b ) 6', 'c ) 9', 'd ) 13', 'e ) 28']

Ex Output:
c

Ex Input:
Problem: two circles are there one with arc area 60 digree equal to 45 digree of another circle find the area of circle 1 : circle 2 ratio
Options: ['a ) 3 : 4', 'b ) 1 : 4', 'c ) 1 : 2', 'd ) 2 : 3', 'e ) 1 : 3']

Ex Output:
a

Ex Input:
Problem: three solid cubes of sides 1 cm , 6 cm and 8 cm are melted to form a new cube . find the surface area of the cube so formed
Options: ['a ) 486', 'b ) 366', 'c ) 299', 'd ) 278', 'e ) 1888']

Ex Output:
a