Unpolarised red light is incident on the surface of a lake at an incident angle $\theta_{R}$. An observer seeing the light reflected from the water surface through a polariser notices that on rotating the polariser,the intensity of light drops to zero at a certain orientation. The red light is replaced by unpolarised blue light. The observer sees the same effect with reflected blue light at an incident angle $\theta_{B}$. Then,

• A
  $\theta_{B} < \theta_{R} < 45^{\circ}$
• B
  $\theta_{B} = \theta_{R}$
• C
  $\theta_{B} > \theta_{R} > 45^{\circ}$
• D
  $\theta_{R} > \theta_{B} > 45^{\circ}$