Which one of the following belongs to the representative group of elements in the periodic table?

Consider the following electronic configuration of an element $(P)$ : $[Xe] 4f^{14} 5d^1 6s^2$. Then,the correct statement about element $P$ is:

Match the following:

List-$I$ (Atomic number)	List-$II$ (Group number and Period number)
$A$. $56$	$I$. $9, 4$
$B$. $50$	$II$. $3, 6$
$C$. $27$	$III$. $14, 5$
$D$. $58$	$IV$. $2, 6$

Which are the starting elements in periods $1$ to $7$?

Atomic numbers of three elements $E_1$,$E_2$ and $E_3$ of the periodic table are $Z_1$,$50$ and $Z_2$ respectively. From the position of the elements shown in the figure,the value of $(Z_2 - Z_1)$ is:

In which group of the periodic table will the element with $Z=120$ be placed?