Based on the context in which it is used on page 21 what does the word sedulously mean

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How does the poem's mood and tone change in each of these stages of “o captain! my captain! ” by walt whitman? (i need an answer asap )

Along the sea-sands damp and brown the traveller hastens toward the town, what is the effect of the enjambment in these two lines? it emphasizes the idea that each line is a separate thought. it creates a rhyme scheme between the two lines. it encourages the reader to pause between the two lines. it strengthens the connection between the two lines.