Can we draw the following hypothesis from the context (see options)? 

Context:

The Government has argued as if petitioners had advanced a general theory of the Copyright Clause, or a general constraint under which Congress must operate. That is a mistake. This case is about limits to an enumerated power. It's not about general power of Congress to exercise its copyright authority.

Hypothesis: Copyright Clause isn't a legal term
Choose your answer from:
(I). Yes;
(II). It's impossible to say;
(III). No;
(III).