It is -- well, it -- let me say with respond -- in response to both of those questions, an unlimited time would violate the Copyright Clause. Something that was the functional equivalent of an unlimited time would violate the Copyright Clause, but the Framers specifically did not put in numbers.

Can we draw the following conclusion?
an unlimited time would violate the Copyright Clause, which no one wants

Available options:
[a]. Yes;
[b]. It's impossible to say;
[c]. No;
[b].