Assertion: Gonyaulax multiply rapidly and exhibits red tides.

Reason: Gonyaulax, release toxins which may result in the death of many marine animals such as fishes.

• A

  Both assertion and reason are true and reason is the correct explanation of assertion. 

• B

  Both assertion and reason are true but reason is not the correct explanation of assertion.

• C

  Assertion is true but reason is false

• D

  Both assertion and reason are false