JEE Main 2023 Chemistry question

Which of the following options are correct for the reaction? 2[Au(CN)_2]^-(aq)+Zn(s)\to2Au(s)+[Zn(CN)_4]^{2-}(aq) A. Redox reaction B. Displacement reaction C. Decomposition reaction D. Combination reaction Choose the correct answer from the options given below:

• (A)A only
• (B)A and D only
• (C)A and B onlyCorrect
• (D)C and D only