When (1R 2R)-2-bromocyclohexanol is treated with a strong base, an epoxide (cyclic ether) is formed. Suggest a mechanism for formation of the epoxide:
OH Br Swang beseſ

Which best describes the sequence of steps in the mechanism
O Loss of leaving group, followed by deprotonation and then nucleophilic attack.
O Loss of leaving group, followed by nucleophilic attack and then deprotonation
O Deprotonation, followed by backside attack
O Deprotonation, followed by loss of leaving group and then nucleophilic attack.