Task: Question Answering
Input (English): Problem: the dimensions of a field are 20 m by 5 m . a pit 10 m long , 4 m wide and 3 m deep is dug in one corner of the field and the earth removed has been evenly spread over the remaining area of the field . what will be the rise in the height of field as a result of this operation ? 
Options: a ) 1 m , b ) 5 m , c ) 4 m , d ) 2 m , e ) 3 m
Output (English): d