The correct option is
B PhysaliaThe Portuguese man of war (
Physalia physalis), is a marine cnidarian which belongs to the family Physaliidae. Its venomous tentacles can deliver a painful sting.
Physalia is commonly known as 'Portuguese man of war' due to sudden appearance and disappearance like active navy ships of Portugal which is pelagic, marine animal. It
lives on the surface of the ocean. Pennatula is commonly known as sea pen.
Corallium is red coral.
Obelia is sea fur.
Therefore, the correct answer is option C.