Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotized and then heated with cuprous bromide. The reaction mixture so formed contains:

1. A
   mixture of $o$ - and $p$ -bromotoluenes
2. B
   mixture of $o$ - and $p$ -dibromobenzenes
3. C
   mixture of $o$ - and $p$ -bromoanilines
4. D
   mixture of $o$ - and $m$ -bromotoluenes