In the following reactions,
$(i) CH_3-CH(CH_3)-CH(OH)-CH_3 \xrightarrow{H^{+}/\text{heat}} A \text{ [Major product]} + B \text{ [Minor product]}$
$(ii) A$ $\xrightarrow[\text{in absence of peroxide}]{HBr, \text{dark}} C \text{ [Major product]} + D \text{ [Minor product]}$
the major products $(A)$ and $(C)$ are respectively:

• A
  $CH_2=C(CH_3)-CH_2-CH_3$ and $CH_3-C(Br)(CH_3)-CH_2-CH_3$
• B
  $CH_3-C(CH_3)=CH-CH_3$ and $CH_3-C(Br)(CH_3)-CH_2-CH_3$
• C
  $CH_2=C(CH_3)-CH_2-CH_3$ and $CH_3-CH(CH_3)-CH(Br)-CH_3$
• D
  $CH_3-C(CH_3)=CH-CH_3$ and $CH_3-CH(CH_3)-CH(Br)-CH_3$