Final answer:
A large body in space that orbits a star and does not produce its own light is known as a planet, fitting the definition for option 1).
Step-by-step explanation:
A large body in space that orbits a star and does not produce light of its own is defined as a planet. Planets are significant bodies that meet specific criteria, including being in orbit around the Sun, having sufficient mass to assume hydrostatic equilibrium (a rounded shape), and having cleared their orbital neighborhoods of other debris.
The eight planets in our solar system are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Moons orbit planets and are also not light-producing bodies, but they are not classified under the same category as planets.
Asteroids are smaller, stony or metallic objects that orbit the Sun, and while comets are icy and dusty small bodies revolving around the Sun, they can emit light when their materials vaporize near the Sun, producing a visible atmosphere and tail.
When answering the student's question: A large body in space that orbits a star and does not produce light of its own is a planet, which is option 1).