D is an open ended question because it requires an explanation.
Answer:
I don't know, but maybe because they possibly aren't allowed on other apps, or they are banned.
Explanation:
It's meant to give off an ominous feeling, or like someone is doing something wrong. The dark colors and lurking actors give it more of a creepy, dark, and ominous feel.
I would lean towards d, because a lot of the viking age art was made in tribute towards viking warriors, and viking warrior ships, etc..
Answer:
While slavery was the major issue separating the North and South, it was not slavery itself that sparked the conflict. The South wanted to secede from the Union, and the North refused. While President Abraham Lincoln personally opposed slavery, he recognized that it was legal under the U.S. Constitution at the time. He also recognized that few in the North were ready to go to war to free the slaves. For Lincoln and the northern majority, preservation of the Union was the foremost goal.
