If neurons only have one signal they can send and it only has one strength and speed what is different about the signals?

d i think its   answer d

multiply it by 5 in order for you to understand i cant give an exact answer.

fumikage isn't really a bird, and tsuyu does have teeth. tsuyu has a transformation quirk which still allows her to be partially human. otherwise we'd have a large frog running around. fumikage has teeth because again, he isn't a bird. his head was a quirk mixture if i'm correct.

what are the awnser choices? i mean, without choices, it is an incompleat