Acetophenone $\left({\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{COCH}}_3\right)$ can be reduced to ethyl benzene $\left({\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2{\mathrm{CH}}_3\right)$ by
I. Clemmensen reduction (Zn-(Hg)/ conc. HCI)
II.Wolff-Kishner reduction (N₂H₄/Glycol, KOH)
III.Birch reduction $\left[\left(\mathrm{Na}/{\mathrm{NH}}_3\right)/{\mathrm{CH}}_3\mathrm{OH}\right]$ 
Select the correct methods to carry the above function.