The diagram illustrates plants and two different zones of a deep lake. In the upper part of the photic zone, organisms carry out both photosynthesis and cellular

respiration. Deep in the aphotic zone, only cellular respiration occurs.

Which statement is the most likely reason photosynthesis does not occur in the deepest

aphotic zone?

A)Sunlight for photosynthesis does not reach the deepest aphotic zone.

B) Water pressure limits the survival of animals in the deepest aphotic zone.

C) Not enough soil is present to support plant growth in the deepest aphotic zone.

D) Not as much dissolved oxygen from the surface reaches the deepest aphotic zone.​