Task: Question Answering
Input (English): Problem: a technician makes a round - trip to and from a certain service center by the same route . if the technician completes the drive to the center and then completes 40 percent of the drive from the center , what percent of the round - trip has the technician completed ? 
Options: a ) 5 % , b ) 70 % , c ) 25 % , d ) 40 % , e ) 55 %
Output (English): b