D . the sharecropper provided the labor
Answer:
Germany escalated its U-boat attacks in 1917 because of Germany's military buildup, the British blockade, and the use of submarine warfare. As war continued on land, Britain decided to use the tactic of the sea and their naval strength. Any ships that were found in the waters around Britain would be sunk.
Explanation:
SORRY IT"S THE SAME ANSWER
Lee decided to surrender his army in part because he wanted to prevent unnecessary destruction to the South.
