First you make sure there is no one around and then you shoot the person jk btw
Explanation:
This is kind of a trick one because at first most colonists were accepting of slavery and owned slaves, but then as time went on people began to see they were taking away their right to freedom.
I think the best option here would be D
First measure first P wave and the first S wave. then the amount of secs it took, then find the distance from the first point out then go left to find it.