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: we need to carve out 125 identical cubes from a cube . what is the minimum number of cuts needed ? 
Options: ['a ) 8', 'b ) 9', 'c ) 10', 'd ) 11', 'e ) 12']

A: e
****
Q: Problem: 50 square stone slabs of equal size were needed to cover a floor area of 72 sq . m . find the length of each stone slab ? 
Options: a ) 120 cm , b ) 767 cm , c ) 88 cm , d ) 666 cm , e ) 776 cm

A: a
****
Q: Problem: square m is inscribed in circle n . if the perimeter of m is 20 , what is the circumference of n ? 
Options: ['a ) 33 √ 2 π', 'b ) 2 √ 2 π', 'c ) 6 √ 2 π', 'd ) 7 √ 2 π', 'e ) 5 √ 2 π']

A:
e
****