d
Ionisation Energy of Lithium in \(G-\)state (to remove \(1^{st}\) electron) \(= 5.4 \;eV\)

After one electron removed, 

Binding Energy of \(Li^+\) in \(G-\)state ( to remove inner electron) \(= 75.6\; eV\)

So total enery required to remove one valence and two inner electron 

\(= 5.4 + 2 \times 75.6 = 5.4 + 151.2 \)\(= 156.6\; eV\)