An example are our arms are similar to other s
The theme is the writer's view of or comment about the subject. The answer to your question is D. I hope this is the answer that you are looking for and it comes to your help.
B. Controlling the flow of Blood to the skin seems to make the most sense
The correct answer is option B
The fishes that live in the shallow water along the sea floor needs a flattened shape and eyes on the dorsal side because they need to see above and have least possibility that the eyes will be required to see downwards as they lie at the sea floor.
They have tail for protection and flattened body for easy swimming.
Example: Stingray.
