The correct answer is: B. Xenon.
Xenon is the only inert gas that can form compounds. It has been shown to form compounds with fluorine, oxygen, and chlorine. The most common xenon compound is xenon difluoride (XeF2). Xenon difluoride is a colorless, odorless gas that is used in lasers and as a propellant in rocket engines.
Argon, krypton, and helium are all inert gases that do not form compounds. They are all monatomic gases that have very stable electron configurations. This means that they do not need to form compounds in order to achieve a stable electron configuration.
Argon is the most abundant inert gas in the Earth’s atmosphere. It is also used in welding and as a protective gas in food packaging. Krypton is a less abundant inert gas that is used in light bulbs and lasers. Helium is the least abundant inert gas and is used in balloons and blimps.