Choose from options: Determine if the sentence is true based on the text below:
The retrospective extension argument is an acceptable argument.

Well, the strongest First Amendment argument is about the retrospective extension, because of a fundamental change that occurs when Congress extends subsisting copyrights, rather than when Congress legislates prospectively. When Congress legislates prospectively, it has no way to know who's going to benefit from its extension.
Options: A. Yes. B. It's impossible to say. C. No.
B.