Wow good job ! hopefully your grade will eventually get to an A or at least a B! good luck :)
Answer:
The speaker and the captain are not happy; the captain is dead and the speaker sad because of this.
Yet, other people are happy about the end of the trip ("the people all exulting"). Those two images are being contrasted here- so the answer is:
The poet is trying to show that there are people celebrating, but they do not feel the pain of the speaker.
The plural that is not formed correctly is d. roof = rooves. The modern version of the plural of roof is "roofs". Rooves was used in the UK and New England during the nineteenth century. It is still occasionally seen with other plurals such as hoof = hooves, but it is not common. The English language is full of rules with exceptions to the rule. For example, the plural of hoof is hooves, but the plural of roof is not rooves. It is roofs.
The answer is A. :) Because an interrogative sentence asks a question.