Context: Opalescent nudibranchs have stinging cells in their brightly colored skin. The bright colors serve as a warning sign that the animal is toxic and dangerous. The 's skin is adapted to ward off predators.
Figure: opalescent nudibranch.
Which animal's skin is better adapted as a warning sign to ward off predators?
A. golden dart frog
B. lichen katydid
From the given choices, select the correct answer and reply with the letter of the chosen option.

A