What does the metaphor "all my thoughts are slow and brown" say about the speaker's state of mind?

What is the main theme reflected in this excerpt from "ulysses" by alfred, lord tennyson?

Read the excerpt below and answer the question.she dwelt among the untrodden waysbeside the springs of dove,a maid whom there were none to praiseand very few to love: a violet by a mossy stonehalf hidden from the eye! fair as a star, when only oneis shining in the sky.she lived unknown, and few could knowwhen lucy ceased to be; but she is in her grave, and, oh,the difference to me! (wordsworth, "she dwelt among the untrodden ways")which option best explains how the choice of the word oh in the final stanza contributes to the poem's meaning? it was selected to create a regular end rhyme.it was selected to establish assonance in the line.it was selected to maintain the line's iambic structure.it was selected to stress the poet's sense of loss.

Which resource might provide a student who is just starting a research project with a list of credible sources of information to consult? o a. a biography of an early computer scientist o b. an article on new developments in computing o c. a book about programming languages o d. an online encyclopedia article or wiki