Organisms in the deepest part of the ocean (the abyssal zone):

A: come up to the surface often to breath

B: do you not need oxygen

C: feed only on minerals

D: Live without any sunlight

Option A.

Organisms in the deepest part of the ocean come up to the surface to breath.

Explanation:

Abyssal zone is the part of the ocean towards the bottom. It consists of 83% of the ocean. The zone is completely dark. There is no sunlight striking this zone so the organisms which require sunlight are not found here. The organisms like sharks and deep sea fish in this zone have to reach above them for breathing dissolved oxygen as this zone has no such plants to produce oxygen.