For the following reactions,the major products are shown: $H_2C=CH-CH=CH_2$ $\xrightarrow[0^\circ C]{HBr} CH_2=CH-CH(Br)-CH_3$ $\xrightarrow{25^\circ C} Br-CH_2-CH=CH-CH_3$. These provide an example of $1$ control at low temperature and $2$ control at higher temperature.

• A
  $1 = \text{kinetic}, 2 = \text{thermodynamic}$
• B
  $1 = \text{thermodynamic}, 2 = \text{kinetic}$
• C
  $1 = \text{kinetic}, 2 = \text{kinetic}$
• D
  $1 = \text{thermodynamic}, 2 = \text{thermodynamic}$