According to the theory of relativity, is everything relative?
A) No, time and space are not relative.
B) No, velocity is not relative.
C) No, lightspeed is not relative.
D) Yes.
E) No, mass is not relative.

Question

Quizplus · Accepted Answer

According to the theory of relativity, the speed of light in a vacuum is constant and not relative, meaning it is the same for all observers regardless of their motion.

According to the Theory of Relativity, Is Everything Relative