Identify the Gabriel phthalimide synthesis reaction from the reactants and reagents used in it.

• A
  $R-CN + [H] \underset{\text{ether}}{\stackrel{LiAlH_4}{\longrightarrow}} R-CH_2NH_2$
• B
  $R-CONH_2 + [H] \underset{\text{ether}}{\stackrel{LiAlH_4}{\longrightarrow}} R-CH_2NH_2$
• C
  $R-CONH_2 + Br_2 + 4 NaOH_{\text{(aq.)}} \stackrel{\Delta}{\longrightarrow} R-NH_2 + Na_2CO_3 + 2NaBr + 2H_2O$
• D
  Phthalimide + $KOH$ (alc.) $\rightarrow$ $N$-potassiophthalimide $\xrightarrow{R-X}$ $N$-alkylphthalimide $\xrightarrow{NaOH_{\text{(aq.)}}}$ Phthalic acid (salt) + $R-NH_2$