NEED THIS ASAP! 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. (5 points)

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

the answer is irony!

the development of trade during the middle age increased to the change given in the agriculture, which gave money, industry and markets a bigger importance in economy. the agriculture production was more than the consumption, which meant the creation of wider markets out of the areas. besides, with the end of multiple wars, the population increased and new trade routes were created.

stating your point of the article