Assertion: The absorption spectrum of chlorophyll 'a' shows close correlation with its 'action spectrum'.
Reason: Chlorophyll 'a' is present in both the pigment systems I and ll.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not correct explanation of A
(c) A is true but R is false
(d) A and R are false