The Function of a Holdfast Present in Some Species of Brown

The function of a holdfast present in some species of brown algae is to

A) anchor the alga to rocks on the bottom of the ocean.
B) absorb nutrients from the ocean bottom and conduct them to the upper portions of the thallus.
C) carry out photosynthesis.
D) buoyed up the thallus so that it can get light for photosynthesis.
E) all of the above are functions of a holdfast.