the answer is (A) the announcement of the Athenian defeat at the battle of the Marathon
Congress thought President Lincoln was being to sincere and forgiving toward the Confederate side of the US (remember that they seceded from the Union and formed their own goverment which started the American Civil War).
The increase of technology used during the construction of the railroads and factories is considered the second Industrial Revolution. This is because of the many inventions and help of transportation use. Hope this helps.
