Context: We drove to the nearby Blue Ridge Parkway where we found a trail that wrapped around a lake . As we walked , we debated man 's capacity to change himself . Later , the girls watched movies , and the guys continued the ping pong wars while watching football .
Question: What was the topic of conversation on the walk ?
Option 0: How men can change .
Option 1: How ping pong is played .
Option 2: How girls treat each other .
Option 3: How wars are fought .
Answer: 0