Answer: Windmill is not a CFC and none of the shareholders will have a deemed dividend under subpart F.
Step-by-step explanation:
Subpart F income include insurance income, illegal bribes, foreign base company income, international boycott factor income, etc.
It should be noted that Windmill isn't a controlled foreign corporation that is the company isn't a corporate entity which is duly registered and then conducts business in another country that's different from its home country. Therefore, none of the shareholders will have a deemed dividend under subpart F.