Task: Question Answering
Input (English): Problem: working together, wayne and his son can shovel the entire driveway in three hours. if wayne can shovel six times as fast as his son can, how many hours would it take for his son to shovel the entire driveway on his own ?
Options: a. 4, b. 6, c. 8, d. 7, e. 12
Output (English): d