Given the question: Here's a short story: Pam took a large piece of cardboard and slid on it across the snow, and another day she slid on the cardboard across the grass. The cardboard traveled a greater distance across the snow than it did across the grass because there was more resistance on the (A) grass (B) snow..  What is the most sensical answer between "snow" and  "grass"?
The answer is:
snow