Which of the following inferences about our solar system is best supported by the passage? A. Life in the solar system depends on energy from the sun. B. When the system reaches a particular size, it can become unstable and begin to collapse. C. The natural rotation of the galaxy can alter the galaxy's structure. D. It is believed to have been formed from materials "seeded" into hydrogen clouds. E. It produced so much energy when it was formed that heavy elements were generated.