Task: Question Answering
Input (English): Problem: a high school has 400 students 1 / 2 attend the airthmetic club, 5 / 8 attend the biology club and 3 / 4 attend the chemistry club. 1 / 8 attend all 3 clubs. if every student attends at least one club how many students attend exactly 2 clubs.
Options: a. 300, b. 200, c. 250, d. 150, e. 160
Output (English): c