Identify the major product in the following reactions :
`C_(6)H_(5)-CH_(2)-underset(Br)underset( |)overset(H)overset(|)C-CH_(3) underset(Delta)overset(Alc.KOH)to ? overset(HBr)to` ?

Explanation

To identify the major product of the given reactions, we will analyze the steps involved in the reaction of the compound with alcoholic KOH and then with HBr.

### Step-by-Step Solution:

1. **Identify the Starting Compound**:
The starting compound is C₆H₅-CH₂-CHBr-CH₃. This compound has a benzyl group (C₆H₅-CH₂) attached to a carbon that has a bromine atom (Br) and a methyl group (CH₃).

2. **Reaction with Alcoholic KOH**:
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