No, they cannot be sure because the man has short eyelashes so the children each get characteristics from each parents so some may have long eyelashes and some may have short eyelashes.
i think c. is the best answer , we just got off that topic like a week ago .
I'm not completely sure, but I'd say D.
I'm not 100% sure but I would say watermelon. Watermelon is predominantly water like most melons.