Answer:
C: examples support the thesis statement.
If you are comparing two or more things, you want to have facts to support your claim.
Happy of something like
i am pide to be a american
there’s going to be a total eclipse of the Sun visible on a line across the US. But when exactly will the solar eclipse occur at a given location? Being able to predict astronomical events has historically been one of the great triumphs of exact science. But in 2017, how well can it actually be done?
I believe the word means being cautious in this context.