Context: Blue poison dart frogs have poisonous glands in their brightly colored skin. The bright colors serve as a warning sign that the animal is poisonous. The 's skin is adapted to ward off predators.
Figure: blue poison dart frog.
Which animal's skin is better adapted as a warning sign to ward off predators?
A. Spanish shawl nudibranch
B. impala
Identify the correct option from the choices provided and respond with the letter of the correct option.

A