Context: Sharpnose-puffers are poisonous animals with brightly colored skin. The bright color serves as a warning sign that the animal is poisonous. The 's skin is adapted to ward off predators.
Figure: sharpnose-puffer.
Which animal's skin is better adapted as a warning sign to ward off predators?
A. opalescent nudibranch
B. fantastic leaf-tailed gecko
Select the correct answer from the given choices and respond with the letter of the chosen option.

A