A convex lens of crown glass ( n =1.525) will behave as a divergent lens if immersed in

• A

  $\text{ Water }(\mathrm{n}=1.33)$

• B

  $\text{ In a medium of }\mathrm{n}=1.525$

• C

  $\text{ Carbon disulphide }\mathrm{n}=1.66$

• D

   It cannot act as a divergent lens