1.Which of the following orders is correct?a.MeBr > Me2_22CHBr > Me3_33CBr > Et3_33CBr (SN_NN2)b.Me3_33CBr > Me2_22CHBr > Me2_22CHCH2_22Br > MeCH2_22CH2_22CH2_22Br (E2)c.PhCH2_22Br > PhCHBrMe > PhCBrMe2_22 > PhCBrMePh (SN_NN1)d.MeI > MeBr > MeCl > MeF (SN_NN2)Login to continueOnly logged in users canattempt or see the solution.