That is, that the Copyright Clause justifies the extension for works not yet created, but it would be enormously inequitable to have other authors who put in the same amount of work get a lesser protection, so the Necessary and Proper Clause now allows you to do the 24 retrospective?

Based on that paragraph can we conclude that this sentence is true?
Copyright Clause has a z

OPTIONS: A. Yes; B. It's impossible to say; C. No;
C.