MCQ

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Material A has critical angle $\mathrm{i}_{\mathrm{A}}$,  and material B has critical angle $i_B\left(i_B>i_A\right)$. Then which of the following is true
$(i)$ Light can be totally internally reflected when it passes from $B$ to $A$
$(ii)$ Light can be totally internally reflected when it passes from $A$ to $B$
$(iii)$ Critical angle for total internal reflection is $i_B-i_A$ 
$(iv)$ Critical angle between $A$ and $B$ is $\sin ^{-1}\left(\frac{\sin i_A}{\sin i_B}\right)$

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