Task: Question Answering
Input (English): Problem: a rectangular region has a fence along three sides and a wall along the fourth side . the fenced side opposite the wall is twice the length of each of the other two fenced sides . if the area of the rectangular region is 800 square feet , what is the total length of the fence , in feet ? 
Options: a ) 40 , b ) 80 , c ) 100 , d ) 120 , e ) 200
Output (English): b