From what i think it may be D
The Triple Line
This was a Greek-style phalanx which the Romans adapted. Formations were made based on military rank. The lines consisted of the least experienced men, the hastate, at the front followed by the principles and then the triarii, or the most experienced soldiers.
Answer:
C
Explanation:
The Great Depression was the worst economic fall. Knowing that economics relates to money or profit, we could tell that the answer is C Americans buying with credit.