Three Ways to express a general statement

[utakata]

a)A dog is a faithful animal.
b)The dog is a faithful animal.
c)Dogs are faithful animals.

I think the three examples share the same basic meaning.
Is there a difference of nuance between them?

[naomimalan]

All three are correct. No difference in meaning. (C) is less formal than the first two.

[utakata]

All three are correct. No difference in meaning. (C) is less formal than the first two.

Thanks for the answer naomimalan :)
I'd like to confirm whether b) sounds academic or not.
I've heard that thing from a native.

[naomimalan]

Yes, it does. Your native speaker was right.