Our solar system has nine planets, each of which orbits the sun in an anticlockwise direction on the same plane so forming a disc-shaped system. The four inner ones, Mercury, Venus, Earth and Mars, are spheres of rock while the four much larger outer planets, Jupiter, Saturn, Uranus and Neptune, are gigantic balls of gas with liquid and solid cores. Pluto is the exception in that it is the most distant of the planets from the sun but is, like the inner planets, made up of a sphere of rock rather than a large amount of gas, as are its distant neighbours. All the outer planets and two of the inner planets have at least one moon. Saturn has the most with 20.

Question: Pluto has at least one moon.
Options:
A. true, B. false, C. uncertain
Answer: "A"