Where can you buy copy paper, pens and desks?\nOptions:\n- computer printer\n- artist's studio\n- office supply store\n- classroom\n- supermarket
Let's think now! Step-by-step reasoning:
User
Stores are shops from where one can purchase various things. Office supplies include things like copy paper, pen and desks. One can buy office supplies from an office supply store.
So, the final answer is office supply store.
Assistant