Identify the polymer obtained by heating $\mathrm{n}$ moles of isobutylene with $\mathrm{n}$ moles of isoprene at $100^{\circ} \mathrm{C}$ in presence of anhydrous $\mathrm{AlCl}_{3}$

• Correct answer
  A

  Butyl rubber
• B

  Buna-N
• C

  Buna-S
• D

  Neoprene rubber

Hence, the correct answer is option: 'A'.