d$.$ The metal with the highest energy Fermi level from the options below is:

i$.$ Pb$,$ Valency $($q$)=4,$ molar volume $18\mathrm{.}26$ cm$-3$

ii$.$ Al$,$ Valency $($q$)=3,$ molar volume $10$ cm$-3$

iii. Zn$,$ Valency $($q$)=2,$ molar volume $9\mathrm{.}16$ cm$-3$

iv$.$ Be$,$ Valency $($q$)=2,$ molar volume $4\mathrm{.}85$ cm$-3$

v$.$ Li$,$ Valency $($q$)=1,$ molar volume $13\mathrm{.}02$ cm$-3$

vi$.$ Au$,$ Valency $($q$)=1,$ molar volume $10\mathrm{.}21$ cm$-3$