Answer:
Mars → Neptune → Uranus → Saturn
Step-by-step explanation:
The solar system has 8 planets. The 4 outer gaseous planets have many moons as compared to 4 inner rocky planets.
Mercury and Venus have no moons
Earth has 1 one moon
Mars has 2 moons -Phobos and Deimos
Jupiter has 67 moons
Saturn has 62 moons
Uranus has 27 moons
Neptune has 14 moons
Thus, from the given options, the correct order of number of moons is:
Mars (2) → Neptune (14) → Uranus (27) → Saturn (62)