This line is repeated twice so as to stress on the fact that we have to fulfill a lot of responsibilities and promises before we die. Our inner conscience keeps on reminding us to stay away from temptations and always strive to fulfill our responsibilities and promises.
C is the answer. A semi-colon adds more info to something
Answer: To put it bluntly, “Thanatopsis” is about death. The word thanatopsis itself derives from the Greek roots thanatos death and opsis sight. In other words, the poem always has death in its sights. One of the speaker's main goals seems simply to make death and its inevitability vivid for the poem's readers.
Explanation:
C would be the right answer since you can't "see" understanding