What is the function of the transition in this sentence?

plans for a transcontinental railroad began years before the civil war, yet officials from around the country could not agree on a location.

to summarize ideas
to give an example
to show an exception
to emphasize

Modernist poets were concerned with many issues and used their poetry to express their concerns. which item from this list was not one of their concerns? a.corruption of traditional american values b.brutality of wwi c.the effects of the great depression d.crowded, crime-ridden city life e.alienation of the individual

Which pair of words has similar denotation but different connotations?

Where sarah live? a. are b. is c. do d. does