কোন বিক্রিয়াটি সঠিক?

A $(C_{2}H_{5})_{2}OH(1)+H_{2}SO_{4}(1)=C_{2}H_{5}-OSO_{3}H(1)+H_{2}(g)$

B $C_{6}H_{5}-C\equiv N+2H_{2}O\frac{HCI}{∆}\rightarrow C_{6}H_{5}-COOH+NH_{3}+CO_{2}$

C $(CH_{3}CO)_{2}O(1)+NH_{3}(g)^{△}CH_{3}CO-NH_{2}(s)+CH_{3}COOH(1)$