Task: Question Answering
Input (English): Problem: a, b and c, each working alone can complete a job in 6, 8 and 12 days respectively. if all three of them work together to complete a job and earn $ 1170, what will be b ' s share of the earnings ?
Options: a. $ 390, b. $ 520, c. $ 1080, d. $ 1170, e. $ 630
Output (English): a