Match the algae classes with their common names:

Solution

The correct matching is:
- Chlorophyceae (i) - Green algae (b): Characterized by chlorophyll a and b pigments
- Phaeophyceae (ii) - Brown algae (a): Contains fucoxanthin pigment giving them their brown color
- Rhodophyceae (iii) - Red algae (d): Contains phycoerythrin and phycocyanin pigments giving them their red color
- Cyanophyceae (iv) - Blue-green algae (c): Actually cyanobacteria with phycocyanin giving them their blue-green color