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

Problem: the volume of the largest right circular cone that can be cut out of a cube of edge 7 cm is : 
Options: ['a ) 89.8 cm ³', 'b ) 92.5 cm ³', 'c ) 132.8 cm ³', 'd ) 144.5 cm ³', 'e ) none']
a

Problem: the perimeter of one face of a cube is 32 cm . its volume will be : 
Options: a ) 125 cm 3 , b ) 400 cm 3 , c ) 512 cm 3 , d ) 625 cm 3 , e ) none of these
c

Problem: if the height of a cone is increased by 100 % then its volume is increased by ? 
Options: a ) 200 % , b ) 300 % , c ) 100 % , d ) 500 % , e ) 350 %

c