Correct Answer - B
`underset("Phenylester")(R-overset(O)overset(||)(C )-OC_(6)H_(5))+2H_(2)rarrunderset(1^(@)"alcohol" )(R-CH_(2)OH)+underset("Pherol")(C_(6)H_(5)OH)`
Compound `(2)` is a primary alcohol. Compound `(1)` is `2^(@)` alcohol, compound `(3)` is `3^(@)` akcohol and compound `(4)` is a `2^(@)` alcohol