Identify `A,B,C,"….."` in the given reaction sequence .
`C_(6)H_(5)COOCH_(3) + C_(2)H_(5)COOCH_(3) underset( 2. H^(+))overset( 1. C_(2)H_(5) ONa) ( rarr) A overset( H_(3)O^(+))(rarr) B+C, B overset( Delta ) ( rarr) D `

Explanation

To solve the problem, we will analyze the given reaction sequence step by step to identify the compounds A, B, C, and D.

### Step 1: Understanding the Reactants
The reactants given are:
1. **C₆H₅COOCH₃** (Methyl benzoate)
2. **C₂H₅COOCH₃** (Methyl propanoate)

These two compounds will undergo a reaction in the presence of an acid catalyst (H⁺) and a sodium ethoxide (C₂H₅ONa).
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