The right option is; C. rocky surface
Rocky surface is a common feature among the four inner planets.
The four inner planets in the Solar System include; Mercury, Venus, Earth, and Mars. The four inner planets are closer to the sun, and have similar compact solid bodies with rocky surfaces. They are created from tiny grains of dust that merged together to form pebbles, planetary embryos, and protoplanets. They are mostly composed of heavy metals such as iron and nickel, and they possess either few moons or no moon.