We Still Use Newton's Law of Gravitation, Even Though Einstein's

Multiple Choice

We still use Newton's law of gravitation, even though Einstein's relativity is more correct, because

A) there's not enough evidence for relativity to justify using it.
B) Newton's laws are exact enough except in extreme situations.
C) relativity does not apply to gravitation.
D) inertia mass and gravitational mass are different, and Newton's law accounts for that.
E) Newton was wrong, but the math is much easier.