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Which statement is consistent with Hunds rule.

[A].	Electrons fill orbitals with parallel spins until all the orbitals of the same energy are half filled then they go into sub-shells with anti-parallel (opposite) spin.	[B].	The electrons in the same atom cannot have the same four quantum numbers
[C].	There is maximum of two electrons is an orbital.	[D].	None

Answer: Option A