Copyright law Authorship, joint authorship, and works made for hire

QUESTIONS:

1. In the example of the visual artwork created by an artificially intelligent program, who should the law consider the author of the work? The programmer, the AI, or no one at all? Explain your answer.
2. Imagine that Max and Phil run a florist business together. Max does the floral design, and Phil takes photos of the designs to post on the business' website. Is Max a joint author of the photos that Phil takes? Explain the best arguments for and against.