This is also helpful.
I would point out that there is a fourth possibility that C.S. Lewis failed to consider. Lore. Perhaps there was a person named Jesus and the events of his life got severely exaggerated. This happened with many other historical figures.
There are myths and legends about George Washington, Daniel Boone, Alexander the Great, etc. It is said that George Washington threw a silver dollar across the Potomac River, a feat that is not humanly possible. So, do we conclude that George Washington was superhuman? Was he a liar? Was he a lunatic? Or did somebody just make it up or embellish an actual event?
Josephus cites four sources that say the Sea of Pamphylia (the modern Gulf of Adalya in southern Turkey) gave way for Alexander the Great and his army. One of these sources claimed to have been in Alexander's army. They decided this event was divine intervention. It is a very similar story to Moses' parting of the Red Sea. Do we conclude, as the soldiers did, that Alexander was a god? Was the story a lie or told by a lunatic? Or did it just so happen that there was an event that caused an unexpectedly low tide and this got embellished into a miracle story?