Why Could a Human Not Absorb Enough Oxygen Through the Skin,as

Multiple Choice

Why could a human not absorb enough oxygen through the skin,as opposed to creatures like sea anemones?

A) Our surface area to volume ratio is too high for oxygen to reach all tissues.
B) Sea anemones live in water, and there is more oxygen available.
C) Our surface area to volume ratio is too low for oxygen to reach all tissues.
D) Our capillaries do not come close enough to the skin to absorb oxygen.
E) Sea anemones have a larger heart relative to the rest of their body.