The best answer would be A.
The entire excerpt describes the speaker's admiration of the structure, not just of its physical beauty but the history that came with it. This first part of the excerpt details the "recent rust". It is old and a bit rundown, but still very familiar to the speaker. The last part describes how the speaker is trying hard to imagine what the great house looked like when it was newly built --"early shine".
By listening to people that are fluent in a certain language, you can learn the right way to form a sentence and pronounce certain words.
<em><u>Answer:</u></em>
- To help the reader understand Harrison’s chronometer better.
The British were extremely worried for how they could make clocks that were precise as long as they remained still, however not when they were shaken about, and especially not on load up a moving boat.
It means that life is good and that you are not concerned about the future!<span />