JEE Main 2021 Chemistry question

Ammonolysis of Alkyl halides followed by the treatment with NaOH solution can be used to prepare primary, secondary and tertiary amines. The purpose of NaOH in the reaction is :

• (A)to remove basic impurities
• (B)to activate used in the reaction
• (C)to remove acidic impuritiesCorrect
• (D)to increase the reactivity of alkyl halide