Which is the best method of preparing `2^(@)` amine ?

Which is the best method of preparing `2^(@)` amine ?
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Which is the best method of preparing `2^(@)` amine ? A. `CH_(3)CI+ NH_(3) rarr` B. ` ... (CHCI_(3)//KOH)underset(Delta)rarr overset(Sn//HCI)rarr`
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