Answer:
B.) crust
Explanation:
The ocean floor and continents are all part of the crust. This outermost layer has a thickness of approximately 5-50 km and is divided into 2 parts: continental crust and oceanic crust, corresponding to the continents and oceans, respectively.
C. It portrays evolutionary change as a smooth curve.
I believe those are both non-contact forces bc it's not something physical