In the periodic table,going down in the fluorine group $(Group \ 17)$:

The size of the species $Pb$,$Pb^{2+}$,and $Pb^{4+}$ decreases as:

Given below are two statements:
Statement $I$: The metallic radius of $Na$ is $1.86 \ \mathring{A}$ and the ionic radius of $Na^{+}$ is lesser than $1.86 \ \mathring{A}$.
Statement $II$: Ions are always smaller in size than the corresponding elements.
In the light of the above statements,choose the correct answer from the options given below:

Which of the following series correctly represents the relationship between the elements from $X$ to $Y$ $(X \to Y)$?

The set representing the correct order of ionic radius is

Match the elements in Column-$A$ with their correct atomic radii in Column-$B$ (in $pm$).

$A$. Element	$B$. Atomic Radius $(pm)$
$A$. $Be$	$I$. $74$
$B$. $C$	$II$. $77$
$C$. $O$	$III$. $66$
$D$. $B$	$IV$. $88$
$E$. $N$	$V$. $111$