The correct answers are B) North American birds and D)abstract images.
North American birds and abstract images were subjects of famous American artists of the mid-1800s.
Many of the important artists in the United States in the mid-1800s had been trained in some parts of Europe. This continent had witnessed many of the great artists of all time. That is why Europe was the place to be to develop artistic talent. These Northamerican artists of the mid-1800s sought to paint portraits of people and beautiful landscapes. The Hudson River School was one of the first schools to develop an authentic Amerian style of painting.
