Periodic Table And Periodicity

Given below are two statements :

Statement (I) : The \(4 \mathrm{f}\) and \(5 \mathrm{f}\) - series of elements are placed separately in the Periodic table to preserve the principle of classification.

Statement (II) : S-block elements can be found in pure form in nature.


In the light of the above statements, choose the most appropriate answer from the options given below :