Which of the following can be inferred about the experiment described in the first paragraph?
A.
Researchers had difficulty verifying the existence of electroreceptors in the anteater because electroreceptors respond to such a narrow range of electrical field strengths.
B.
Researchers found that the level of nervous activity in the anteater’s brain increased dramatically as the strength of the electrical stimulus was increased.
C.
Researchers found that some areas of the anteater’s snout were not sensitive to a weak electrical stimulus.
D.
Researchers found that the anteater’s tactile receptors were more easily excited by a strong electrical stimulus than were the electro receptors..
E.
Researchers tested small areas of the anteater’s snout in order to ensure that only electroreceptors were responding to the stimulus.