Use reasoning to lead to the answer of the following question:
Today was a big day at the trade show, he was finally going to show off his product to the public and give a what?\nOptions:\n- store\n- shelf\n- market\n- demonstration\n- dance
 Reasoning process:
User
Demonstration of product is given to the public. At trade show, he can give demonstration. Therefore, the final answer is demonstration.
Assistant