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

[Q]: Problem: the perimeter of one face of a cube is 20 cm . its volume will be : 
Options: a ) 125 cm 3 , b ) 400 cm 3 , c ) 250 cm 3 , d ) 625 cm 3 , e ) none of these
[A]: a


[Q]: Problem: what is the ratio between perimeters of two squares one having 2.5 times the diagonal then the other ? 
Options: a ) 4 : 5 , b ) 1 : 3 , c ) 2.5 : 1 , d ) 3.5 : 1 , e ) 3 : 2
[A]: c


[Q]: Problem: the sides of a triangle are in the ratio 5 : 12 : 13 and its perimeter is 300 m , its area is ? 
Options: ['a ) 3000 sq m', 'b ) 1878 sq m', 'c ) 2789 sq m', 'd ) 26811 sq m', 'e ) 29762 sq m']
[A]:
a