Which quotation from the passage is the clearest example of concession?

Gentlemen may cry, Peace, Peace-but there is no peace. (paragraph 5)

It is in vain, sir, to extenuate the matter. (paragraph 5)

They tell us, sir, that we are weak; unable to cope with so formidable an adversary. (paragraph 3)

If we were base enough to desire it, it is now too late to retire from the contest. (paragraph 4)