Answer: d. an algae that grows on the surfaces of rocks.
Kelps are large brown algae seaweeds that grow along rocky shorelines so we choose d as an answer. Three types of Kelps are found mostly on<span> the Pacific coast, Macrocystis (giant </span>kelp), nereocystis luetkeana) and the Alaria fistulosa.
Kelps which are about 30 different genera, included species from Laminariales and Fucales.
