Respuesta :
Phycoerythrin gives red algae its color because it masks the other pigments.
The correct answer is option A phycoerythrin
Phycoerythrin is the pigment found in red algae that provides red color to it. This is the accessory pigment to the main chlorophyll pigments responsible for the process of photosynthesis.
This pigment provides red color to the red algae. It is found in ocean and sea.