The law of intertia states that an object:
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that is not moving will never move unless a force acts on it.
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will continue moving in straight line unless and outside force acts on it.
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will continue moving at the same velocity unless an outside force acts on it
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at rest will remain at rest unless acted by an outside force
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all of the above
Newton's first law of motion (law of inertia) states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. All options A-D describe different aspects of this law, making E the correct comprehensive answer. Option A describes the rest case, B describes motion in straight line, C adds constant velocity (same speed and direction), and D describes the rest condition.