Statement-1 : Lanthanoid contraction is more important than actinoid contraction is more important than actinoid contraction.
Statement-2 : Chemistry of elements surrounding the actinoids are much less known at the present time.
A. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1.
B. Statement-1 is True, Statement-2 is True, Statement-2 is not a correct explanation for Statement-1.
C. Statement-1 is True, Statement-2 is false
D. Statement-1 is False and Statement-2 is True.
