The product of the given reaction is: ABCD?

Option A represents the product of the reaction. Allylic bromination of 4-tert-butylcyclohex-1-ene with NBS/hv gives 3-bromo-5-tert-butylcyclohex-1-ene. Allylic H atom is replaced with Br. Next step is hydrolysis of C−Br bond to form C−OH bond.