Answer:
I think its sustained trench warfare on the Western Front.
Explanation:
To my knowledge, the correct answer among all of the given choices is C.) Steam. If I'm not mistaken, this was the time that more trains came into use.
I hope this is the answer you were looking for and that it helps!! :)
Answer:
-2.3u -5 is the answer for the question
The father of the electricity is the Lightbulb