Which of the following is the most appropriate title for the passage
A. Adaptive Visual Metamorphosis in Deep-Sea Vent Crabs B. Aspects of the General Anatomical Development of Deep-Sea Vent Crabs C. New Research Directions in the Study of Deep-Sea Vent Crabs D. Common Features of Optics of Lower Depth Oceanic Animals E. Patterns of Anatomical Transformation in Lower Oceanic Creatures