The introduction of Caulerpa, also known as killer algae, into California was ultimately the result of

a. hull fouling

b. the aquarium trade in exotic, nonnative aquatic species

c. intentional release

d. an algae farming company

The introduction of Caulerpa, also known as killer algae, into California was ultimately the result of;

A. Hull fouling

"Hull-fouling and aquaculture are the most significant sources of seaweed invaders and should be carefully regulated"