The blood moon hung heavily in the sky, a rare ruby bestowed upon Mother Earth every few orbits of the sun. What is the analogy in this sentence? A. The blood moon is compared to a rare ruby, both of which are red. B. A calendar year is compared to the way the Earth orbits around the sun. C. The moon's position in the night sky is compared to Earth's orbit of the sun. D. A gift given to Mother Earth is compared to the size and shape of the blood moon.