What is molecular formula of 3-bromopropene?

• A

  $\mathrm{C}_{3}$ $\mathrm{H}_{6} \mathrm{Br}$
• B

  $\mathrm{C}_{3}$ $\mathrm{H}_{7} \mathrm{Br}$
• Correct answer
  C

  $\mathrm{C}_{3}$ $\mathrm{H}_{5} \mathrm{Br}$
• D

  $\mathrm{C}_{3}$$\mathrm{H}_{3} \mathrm{Br}$

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