Which of the answer choices presents a valid inference based on the given information?

The passage states, “Another interesting feature lies in the fact that it does not secrete substances that are as toxic as those of other salamanders, even though its dark coloring would suggest otherwise.” This tells us that the spectacled salamander is not as dangerous as other salamanders when it comes to its toxic secretions. Based on the last half of the answer, we can infer that darker salamanders produce matter that is more poisonous than that of the spectacled salamander.