Which of the following best describes trench warfare? A It was a brutal, sluggish, horrific affair. B It was a war of mobility and quickly capturing strategic locations. C Soldiers were often bored throughout the daytime hours. D Both A and C

"A" is quite correct, though "C" adds a bit more detail of how soldiers felt about Trench Warfare. In my honest opinion, I think "D" is the correct answer.

Trench Warfare was rather horrific, and brutal to say the least - - it was also "boring" during stalemates if neither party was engaging in any sort of push.

Note: I'm not a teacher of any sorts! This is just my opinion from things I've learned in the previous years.