So basically bud they declared war because Germany had sunk the Lusitania and was therefore trying to abandon the policy against unrestricted submarine warfare
he was known for making horror movies and he became famous because people got scared and that was a publicity thing.
Soldiers also made dugouts and funk holes in the side of the trenches to give them some protection from the weather and enemy fire. The front-line trenches were also protected by barbed-wire entanglements and machine-gun posts. Short trenches called saps were dug from the front-trench into No-Man's Land.
The answer is probably c or d
