Answer:
The correct answer will be option- B.
Step-by-step explanation:
A scientific theory is a well-substantiated idea which explains any natural phenomenon in depth. The theory is a rational abstract which is based on the generalized thinking.
A principle is a rule or concept that explains the way a system is constructed. A principle can be always proved by the scientist due to which it is followed by the people or has to followed.
Since the Bernoulli's principle can be proved at any point of time with experiment giving the same results and consequences which has been performed by many scientists.
Thus, Option-B is the correct answer.