While researching a topic, a student has taken the following notes:
- Astronomers estimate that the number of comets orbiting the Sun is in the billions.
- 81P/Wild is one of many comets whose orbit has changed over time.
- 81P/Wild’s orbit once lay between the orbits of Uranus and Jupiter.
- The comet’s orbit is now positioned between the orbits of Jupiter and Mars.
The student wants to make and support a generalization about the orbits of comets. Which choice most effectively uses relevant information from the notes to accomplish these goals?