Given below are two statements : Statement I : Ferromagnetism is considered as an extreme form of paramagnetism. Statement II : The number of unpaired electrons in a Cr 2+ ion (Z = 24) is the same as that of a Nd 3+ ion (Z = 60). In the light of the above statements, choose the correct answer from the options given below :

1. A. Statement I is false but Statement II is true
2. B. Both Statement I and Statement II are true
3. C. Both Statement I and Statement II are false
4. D. Statement I is true but Statement II is false

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