The bromination of aniline in water produces :-

${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CONH}}_2\underset{{\mathrm{B}}_2}{\overset{\mathrm{NaOH}}{\to }}\mathrm{A}$,

Aqueous solution of $\mathrm{A}$

(a) ${\mathrm{CH}}_3{\mathrm{CONH}}_2+\mathrm{KOH}+{\mathrm{Br}}_2\to$
(b) ${\mathrm{CH}}_3\mathrm{COOH}+\mathrm{soda} \mathrm{lime}\to$
(c) ${\mathrm{CH}}_3\mathrm{COOAg}+{\mathrm{Br}}_2\to$

All the three reactions show similarity in: