Final answer:
The position of the planet and point P after exactly one day will be 1/84th of its revolution and approximately 41.18% of an additional rotation, having already completed one full rotation.
Step-by-step explanation:
After exactly one day, the position of the planet and point P will have changed both in terms of rotation and revolution. Since the planet completes one rotation in 17 hours, in 24 hours, it would have completed 1 rotation plus 7 additional hours of rotation, which is approximately 41.18% (7/17) of another rotation. As for the revolution, the planet takes 84 years to make one full revolution around the Sun, so in one day, it would have completed 1/84th of its revolution. Therefore, the correct answer is D: The position will be 1/84th of its revolution and 1/17th of its rotation.