Pigments common to all algae are
chlorophyll- a and phycobilins
chlorophyll- a and carotenoids
chlorophyll- a and chlorophyll- b
chlorophyll- b and carotenoids
B.
chlorophyll- a and carotenoids
The colour of algal thallus, varies in different class of algae due to presence of definite chemical compounds or pigments. The chlorophyll- a and carotenoids are present in all algae.