Final answer:
Krypton (A) is the noble gas among the given options.
Step-by-step explanation:
The noble gas among the given options is krypton (A). Noble gases are a group of elements that are highly stable and have a full valence electron shell. They are characterized by their low reactivity and are colorless, odorless, and tasteless. Krypton is one of the noble gases and is used in fluorescent lights and laser technology.
Learn more about Noble gases