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Assertion : Lanthanoids show a limited n...

Assertion : Lanthanoids show a limited number of oxidation states, whereas actinoids show a large number of oxidation states
Reason : Actinoid contraction is grater from element to element due to poor shielding of `5f-`orbitals

A

If both Assertion and Reason are true and reason is the correct explanation of Assertion

B

If both Assertion and Reason are true but reason is not the correct explanation of Assertion

C

If Assertion is true but Reason is false

D

If both Assertion and Reason are false

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