Question

which planet has olympus mons (the largest volcano in the solar system), has 2 moons, phobos and deimos, and has a red surface? a venus b mars c neptune

Explanation:

Olympus Mons is on Mars. Mars has two moons, Phobos and Deimos, and its surface is red due to iron - oxide (rust). Venus and Neptune do not have these characteristics.

Answer:

B. Mars