Some people claim that every human discovery or invention is an instance of self-expression.
Conclusion (So)
We are not obliged to take their claim seriously.
rephrase: it's basically a vacuous claim to say that every discovery or invention is an instance of self-expression.
Evidence
Some people claim that every human discovery or invention is an instance of self-expression.
These people seem to ignore that trivially, anything we do is self-expressive.
Evaluate
The argument suggests that the claim is trivial because it equates to "anything we do is self-expressive." The argument dismisses the claim until a more interesting interpretation is provided.
To support the overall reasoning, we could strengthen the link between "trivial" claims and the idea that they do not require serious consideration. We could also rule out the idea that discoveries/inventions are a special kind of self-expression that's different from the trivial sense.
Goal
Let's find an answer choice that connects trivial claims with the notion that such claims don't warrant serious consideration. Ideally, the correct answer will reinforce that something trivial doesn't need to be taken seriously.