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 Q]: Problem: a circular well with a diameter of 2 meters , is dug to a depth of 14 meters . what is the volume of the earth dug out . 
Options: ['a ) 40 m 3', 'b ) 42 m 3', 'c ) 44 m 3', 'd ) 46 m 3', 'e ) none of these']
[EX A]: c

[EX Q]: Problem: the area of an isosceles trapezoid with sides of length 5 and bases of length 9 and 15 is ? 
Options: a ) 44 , b ) 48 , c ) 46 , d ) 47 , e ) 50
[EX A]: b

[EX Q]: Problem: if a rectangular room measures 8 meters by 5 meters by 4 meters , what is the volume of the room in cubic centimeters ? ( 1 meter = 100 centimeters ) 
Options: ['a ) 24,000', 'b ) 16 , 000,000', 'c ) 2 , 400,000', 'd ) 24 , 000,000', 'e ) 240 , 000,000']
[EX A]:
b