Assertion : Only red algae are able to flourish at the great depth of sea. Reason : Red algae has the pigments r-phycoerythrin and r-phycocyanin.
(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
(b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
(c) If the assertion is true but the reason is false
(d) If both the assertion and reason are false
(e) If the assertion is false but reason is true
Answer: a
(20)