Task: Question Answering
Input (English): Problem: dan can do a job alone in 12 hours. annie, working alone, can do the same job in just 9 hours. if dan works alone for 8 hours and then stops, how many hours will it take annie, working alone, to complete the job ?
Options: a. 2, b. 3, c. 4, d. 5, e. 6
Output (English): b