Answer:
So the answer is: O Surface composition
Step-by-step explanation:
The surface composition of a planet indicates whether the planet is made of solid rock or gas. If a planet has a solid surface, it is likely composed of solid rock. If a planet does not have a solid surface, it is likely composed of gas.
The presence of moons, the presence of rings, and the atmosphere of a planet do not necessarily indicate the composition of the planet, so those options are not correct.
So the answer is: O Surface composition