Newtonian Mechanics,compared to Einstein's Special Relativity Is Valid If

Multiple Choice

Newtonian mechanics,compared to Einstein's Special Relativity is valid if

A) an object is traveling at a constant velocity.
B) an object has a very small mass.
C) the kinetic energy of an object is much less than its rest mass.
D) an object is not traveling at the speed of light.
E) the kinetic energy of an object is much greater than its rest mass.