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Which sequence arranges the following trace gases in descending order of their concentration in the atmosphere?

ANeon, Helium, Methane, Krypton, Hydrogen
BNeon, Krypton, Hydrogen, Methane, Helium
CHydrogen, Krypton, Neon, Methane, Helium
DNeon, Hydrogen, Krypton, Methane, Helium
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