Which of the Following Statements Includes All the Essential Elements

Multiple Choice

Which of the following statements includes all the essential elements of Newton's first law?

A) A body at rest persists in its state of rest unless acted on by a non-zero net external force.
B) A body persists in its state of rest or of uniform motion in a straight line as long as the net external force remains constant.
C) For every action there is an equal and opposite reaction.
D) A body persists in its state of rest or of uniform motion in a straight line unless acted on by a non-zero net external force.
E) The acceleration of a body is proportional to the net external force acting on it and to the mass of the body.