Context: Echidnas have sharp spines covering much of their skin. These spines are called quills. The skin of the  is adapted to hurt an attacking predator.
Figure: echidna.
Which animal's skin is better adapted to hurt an attacking predator?
A. porcupine
B. ring-necked pheasant
From the given choices, select the correct answer and reply with the letter of the chosen option.

A