Respuesta :
The correct answer is b.harming innocent people and making new enemies
When Germany introduced the unrestricted submarine warfare policies, they started attacking any ship in sight, they didn't care who it was, even though it could bring them new enemies. It eventually did just that since it was one of the main reasons why the United States entered the war even though they were against participation for a long time.
Answer:
b.harming innocent people and making new enemies
Explanation: