Question
Identify the compounds A, B and C in the following reaction. $\text{CH}_3-\text{Br}\xrightarrow{\text{Mg}/\text{ether}}\text{(A)}\xrightarrow[(\text{ii})\text{Water}]{(\text{i})\text{CO}_2}\text{(B)}\xrightarrow[\triangle]{\text{CH}_3\text{OH/}\text{H}^+}\text{(C)}$