The road ahead will be long. Our climb will be steep. We may not get there in one year or even one term, but America dash –I ha
ve never been more hopeful than I am tonight that we will get there. I promise you dash –we as a people will get there. There will be setbacks and false starts. We know government can't solve every problem. But I will always be honest with you about the challenges we face. I will listen to you, especially when we disagree. And above all, I will ask you to join in the work of remaking this nation the only way it's been done in America for two-hundred and twenty-one years dash –block by block, brick by brick, calloused hand by calloused hand. The phrase open double quote “calloused hand by calloused hand close double quote ” implies all of the following EXCEPT A. the U.S. was built through the use of slave labor. B. building the U.S. was a long, tough process. C. growth of the country involved hard, physical labor. D. building a nation is not an easy job.
An appositive renames the noun it refers to. Here, we're 'renaming' Dr. Benton Jones to "winner of the Nobel Prize." You could refer to him by either 'name' ('Dr. Jones' or 'winner of the Nobel Prize') going forward.