Whereas if you don't accept the Copyright Clause claim, then, in order to make the First Amendment analysis we've simply got to say, well, gee, is the promotion of useful art and so on more important than the public domain, and can we say that that allows a distinction between 50 years and 70 years?

Based on that paragraph can we conclude that this sentence is true?
The speaker knows the constitution better than others

OPTIONS: A. Yes B. It's impossible to say C. No
B.