diameter of the planet rotational speed of the planet speed of a planet in orbit around the sun diameter of the orbit of a planet around the sun
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: One solar day on Jupiter lasts only 9 hours and 50 minutes. What causes a solar day?
Possibilities:
- diameter of the planet
- rotational speed of the planet
- speed of a planet in orbit around the sun
- diameter of the orbit of a planet around the sun

rotational speed of the planet