Complete the following by suppling intermediates
(i) `CH_(3)CH_(2)Br overset(Mg)underset(ether) (to) A overset(CH_(3) Oh)(to) B +C`

Explanation

To solve the problem step by step, we will identify the intermediates formed in the reaction sequence involving the starting material, Grignard reagent formation, and the subsequent reaction with methanol.

### Step-by-Step Solution:

1. **Starting Material**: The starting material is `CH₃CH₂Br` (ethyl bromide).

2. **Formation of Grignard Reagent**: When ethyl bromide reacts with magnesium (Mg) in the presence of an ether solvent, it forms a Grignard reagent. The reaction can be represented as:
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