That would be D the gramicological errors were unmistakable
Answer:
12 Technological Advancements of World War I
Tanks. In 1914, the “war of movement” expected by most European generals settled down into an unexpected, and seemingly unwinnable, war of trenches. ...
Flamethrowers. ...
Poison Gas. ...
Tracer Bullets. ...
Interrupter Gear. ...
Air traffic control. ...
Depth Charges. ...
Hydrophones.
Explanation:
Expla The answer is encourage
A it is a way to say there is dangerous roads up ahead
Structure .. that is the correct answer
