Which of the Following Is a Correct Statement of Newton's

Multiple Choice

Which of the following is a correct statement of Newton's first law?

A) An object in motion will continue in motion at a constant speed unless acted on by a net external force.
B) An object at rest will stay at rest unless acted on by a net internal force.
C) An object in motion will continue in motion at a constant velocity unless acted on by a net internal force.
D) An object in motion will continue in motion at a constant velocity unless acted on by a net external force.
E) Everything has inertia.