In greek methology, one famously unable to resist tempation is the guy named Tityus. Tityus is a giant and was the one who assaulted the goddess Leto when she was traveling to the shrine of Delphoi. Tityus was slain by the son of Leto.
The correct answer is B. A borrowed word.
The word croissant came from the word "crescent." Thus, because of the shape of the croissant, the word was probably borrowed from crescent. So that's how they named the word. By borrowing it from the word crescent. I hope this answer helped you.