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.

Choose your answer: based on the paragraph above can we conclude that "Most Americans believe that the strongest First Amendment argument is about the retrospective extension"?

Select from the following.
(a). Yes
(b). It's impossible to say
(c). No
I think the answer is
(b).