The French Chemist Antoine Lavoisier Found That the Weight of Objects

The French chemist Antoine Lavoisier found that the weight of objects before burning and the weight of the products after burning were equal. He concluded that the total weight did not change during a process. Which of these best describes Lavoisier's conclusion?

A) From observation, Lavoisier created a scientific law.
B) From observation, Lavoisier created a scientific theory.
C) From scientific law, Lavoisier created a scientific theory.
D) From experimentation, Lavoisier created a scientific law.
E) From observation, Lavoisier created a scientific conclusion.