Lenzy worked as a graphic designer for Swingle Corp., a greeting card company, for over 12 years. He had primary responsibility for producing the company's retro-themed card line. After Lenzy had a falling out with his supervisor, he quit abruptly and went to work for Swingle's major competitor, Thorton Cards.

Group of answer choices

A. Copyright in the card designs created by Lenzy while he was working at Swingle belong to Swingle.

B. Copyright in the card designs created by Lenzy while he was working at Swingle belong to Lenzy, unless Lenzy has signed an invention assignment agreement transferring those rights to Swingle.

C. Copyright in the card designs created by Lenzy while he was working at Swingle belong to Lenzy, but Swingle may have shop rights in the cards.

D. Greeting card designs may be protected by trademark, but not copyright, law.