Read the excerpt from Obama's Second Inaugural

Address.

But we have always understood that when times
change, so must we; that fidelity to our founding
principles requires new responses to new challenges;
that preserving our individual freedoms ultimately
requires collective action. For the American people can
no more meet the demands of today's world by acting
alone than American soldiers could have met the forces
of fascism or communism with muskets and militias. No
single person can train all the math and science
teachers we'll need to equip our children for the future,
or build the roads and networks and research labs that
will bring new jobs and businesses to our shores. Now,
more than ever, we must do these things together, as
one nation and one people.

How is the underlined portion of this excerpt best
characterized?

A. as fact

B. as a substantiated opinion

C. as evidence

D. as an unsubstantiated opinion