Task: Question Answering
Input (English): Problem: car a is 40 miles behind car b , which is traveling in the same direction along the same route as car a . car a is traveling at a constant speed of 58 miles per hour and car bis traveling at a constant speed of 50 miles per hour . how many hours will it take for car a to overtake and drive 8 miles ahead of car b ? 
Options: a ) 5 , b ) 6 , c ) 7 , d ) 5.5 , e ) 6.5
Output (English): b