The correct answer to this question is D, Jupiter. This planet is the largest one in the Solar System. It is also the fifth planet away from the SUn. Its name derived from the Roman God of the same name. Most of Jupiter is hydrogen, but it also contains some helium.
Unlike some of the other planets, Jupiter is unable to become a star. This is because it doesn't have enough mass to start a fusion reaction. Along with its large size, Jupiter is very fast. It can rotate at 12.6 km/s and do a full rotation in 10 hours.