Identify the Reagent(s) Needed to Carry Out the Following Conversion $\mathrm{LiAlH}_{4}$

Identify the reagent(s) needed to carry out the following conversion.

A) Na metal
B) $\mathrm{LiAlH}_{4}$
C) $\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}, \mathrm{H}_{2} \mathrm{SO}_{4} / \mathrm{H}_{2} \mathrm{O}$
D) $\mathrm{NaOH}$