I believe it is C. He used extreme violence to scare enemies into surrendering.
Answer:
4 people from Louisiana serve in civil war
D.The new canals increased production cost.
How i know this:I took the test
In 1917, Germany, determined to win its war of attrition against the Allies, announced the resumption of unrestricted warfare in war-zone waters. Three days later, the United States broke diplomatic relations with Germany, and just hours after that the American liner Housatonic was sunk by a German U-boat.
