Explanation:
In Red algae major pigments are chlorophyll $\mathrm{a}, \mathrm{d}$ and phycoerythrin. Blue-green algae (Cyanobacteria) contain chlorophyll-a along with yellowish carotenoids, the blue pigment phycocyanin. Green algae consist of chlorophyll-a, chlorophyll-b, $\beta$ Carotene, Xanthophylls. Brown algae contains chlorophyll a, c and fucoxanthin.