Material A has critical angle ${\mathrm{i}}_{\mathrm{A}}$ and material B has critical angle ${\mathrm{i}}_{\mathrm{B}}\left({\mathrm{i}}_{\mathrm{B}}>{\mathrm{i}}_{\mathrm{A}}\right)$. 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 ${\mathrm{i}}_{\mathrm{B}}-{\mathrm{i}}_{\mathrm{A}}$

(iv) Critical angle between A and B is ${\text{sin}}^{-1}\left(\frac{{\mathrm{sini}}_{\mathrm{A}}}{{\mathrm{sini}}_{\mathrm{B}}}\right)$

• A

  (i) and (iii)

• B

  (i) and (iv)

• C

  (ii) and (iii) 

• D

  (ii) and (iv)