Task: Question Answering
Input (English): Problem: a rectangular field is to be fenced on three sides leaving a side of 20 feet uncovered. if the area of the field is 800 sq. ft, how many feet of fencing will be required ?
Options: a. 100 feet, b. 120 feet, c. 150 feet, d. 180 feet, e. 186 feet
Output (English): a