Which of the following processes play a part in the formation of a rainbow?
$(i)$ Refraction
$(ii)$ Total internal reflection
$(iii)$ Dispersion
$(iv)$ Interference

• A
  $(i), (ii)$ and $(iii)$
• B
  $(i)$ and $(ii)$
• C
  $(i), (ii)$ and $(iv)$
• D
  $(iii)$ and $(iv)$