The equation is a scientific law, Newton's Law of Gravity,

This is a pretty bad question. Newton's Law of Gravity is a mathematical model of gravitation, originally a theory, verified by observation, and now superseded by the General Theory of Relativity.
C is probably the best answer to this poor question.
Brainly is so proper why is no one saying inappropriate things?
Answer:
functional
Step-by-step explanation:
they all have equal input output ratio
plz mark brainliest
An object in geometry with no width, length or height is a point