Task: Question Answering
Input (English): Problem: to fill a tank , 200 buckets of water is required . how many buckets of water will be required to fill the same tank if the capacity of the bucket is reduced to 4 - fifths of its present ? 
Options: a ) 50 , b ) 100 , c ) 150 , d ) 200 , e ) 250
Output (English): e