Which of the following is a red alga that is not red?

Laminarin and mannitol are stored food of $:-$

What are pyrenoids composed of?

Consider the following statements:
$I.$ In red algae,vegetative reproduction takes place by fragmentation.
$II.$ In red algae,the food is stored as floridean starch,which is very similar to amylopectin and glycogen in structure.
$III.$ The cell wall of red algae consists of chitin.
Which of the statements given above are correct?

Match Column $I$ with Column $II$ and choose the correct option:

Column $I$	Column $II$
$a.$ Shallowest depth	$(i)$ Green algae
$b.$ Intermediate depth	$(ii)$ Brown algae
$c.$ Greatest depth	$(iii)$ Red algae

$A$ : In $Volvox$,heterogametes are formed in the sexual life cycle.
$R$ : Non-motile gametes are transferred by water.