Task: Question Answering
Input (English): Problem: a high school has 400 students 1 / 2 attend the airthmetic club, 5 / 8 attend the physics club and 3 / 4 attend the chemistry club. 3 / 8 attend all 3 clubs. if every student attends at least one club how many students attend exactly 2 clubs.
Options: a. 80, b. 70, c. 60, d. 50, e. 30
Output (English): d