Answer:
Option B - 11.6 m below the surface of water.
Step-by-step explanation:
Given : Ben and Cam are scuba diving. Ben is 15.815.8=15.8 meters below the surface of the water. Cam is 4.24.2= 4.2 meters above Ben.
To find : What is Cam's position relative to the surface of the water?
Solution :
Ben is 15.8 meters below the surface of the water.
Cam is 4.2 meters above Ben.
So, Cam is below the surface of water by meter.
Therefore, Option B is correct that Cam is 11.6 meters below the surface of the water.