B and D , because they are more accurate
Poison gas was one of the major technology advancements militaries used at the course of the first world war. However, it made only a little impact since nations were more inclined on using tanks in the warfare. Tanks were essential in advancing positions because it would easily defeat the trench warfare.
the answer to your question is " D) having more power than others
There are several reasons why the working class went to vaudeville shows, but perhaps the greatest reason was that it game them a rest from their ordinary lives.
Good game for you too good to win with a good chance to play
