Predict the major products when reagents react with 2- phenyloxirane
`(a) sodium phenoxide " " (b) HBr`
`

Explanation

To predict the major products when 2-phenyloxirane reacts with sodium phenoxide and HBr, we will analyze each reaction step by step.

### Step 1: Understand the structure of 2-phenyloxirane
2-phenyloxirane is an epoxide (cyclic ether) with a phenyl group attached to one of the carbons in the three-membered ring. The structure can be represented as follows:

```
O
/ \
...