Task: Question Answering
Input (English): Problem: a circular well with a diameter of 2 metres , is dug to a depth of 4 metres . what is the volume of the earth dug out ? 
Options: a ) 26 m ³ , b ) 28 m ³ , c ) 44 m ³ , d ) 46 m ³ , e ) none
Output (English): c