Answer: Option (D) is the correct answer.
Explanation:
Noble gases are the elements that have completely filled orbitals.
For example, electronic configuration of neon is [tex]1s^{2}2s^{2}2p^{6}[/tex].
Therefore, they do not react at ordinary conditions with any other element in the atmosphere.
Hence, they exist in pure form in the nature.
Thus, we can conclude that group of noble gases of elements is most likely to contain elements that will be found in pure nature.
