Can someone answer this please ?

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 piece of evidence would best support reason #1? othe history of using animals for research extends asfar back as 322 bce, when early greek physician-scientists, such as aristotle and erasistratus,performed various experiments on living animals.animal research played an essential role in thedevelopment of herceptin and tamoxifen, twomedications that have already saved the lives ofthousands of women who have been diagnosed withbreast cancer.even those who believe in testing on animals when it is hnecessary for vital medical research practice what isknown as "the 3 rs-reduction, refinement, andreplacement to reduce the number of animals usedfor testing.biologists believe that chimpanzees share at least 98.4percent of the same dna as humans and gorillas shareat least 97 percent, making primates a popular andlikely choice for the testing of products intended for humans

Which statement is an example of a complex sentence? a. although he denies them, dr. vasquez faced several scandals last year. b. people tend to use too many clauses in sentences that should be simple. c. cars tend to be expensive, but airplanes are in a price range of their own. d. i am in favor of proposition 1, and i am also in favor of proposition 16.