But for them, they get the benefit of the longer term if you don't apply it to an existing copyright. I mean, if you say you need 70 years because of changes in the economy to encourage works, you grant 70 for the future, but why does that, making that apply to somebody provided him?
Can we infer the following?
the economy is not really that important

OPTIONS:
(a). Yes;
(b). It's impossible to say;
(c). No;
The answer is: