Predict the major product for the following reaction.

Question

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The starting material is an alkene with a phenyl and a methyl group on either side of the double bond. The reagent being used is HBr in the presence of peroxide which results in anti-Markovnikov addition of HBr to the double bond. The bromine atom will add to the less substituted carbon of the double bond and the hydrogen will add to the more substituted carbon. This results in the formation of a tertiary carbocation. The nucleophile, Br-, can attack the carbocation from either side resulting in two possible products. However, due to steric effects, it is more favorable for the Br- to attack from the less hindered side resulting in the major product, I.

Predict the Major Product for the Following Reaction