The terrestrial planets are the planets which are the closer to the Sun. These planets includes the Mercury, Venus, Earth and Mars. The gas giant planets are those which are the farthest from the Sun. They are the outer planets of our solar system and includes Saturn, Jupiter, Uranus and Neptune. These planets are composed of gases and have little hard rocky material at their core. However, these planets have rings around them which is mostly composed of gases, moons etc, but the terrestrial planets do not have such rings around them.
Hence, the correct answer is 'Option B - rings'.
