Phycoerythrin and floridean starch are found in

Which photosynthetic pigments are present in algae?

Which photosynthetic pigment is $NOT$ found in algae?

Algae with floridean starch as reserve food material is also characterised by

$A.$ Algae are known as primitive plants.
$R.$ The body structure of algae is simple.

If you are asked to classify different algae into distinct groups,which of the following characteristics would you choose?