A ) correct. he was born in the us , so he is a citizen
B) incorrect. Permanent resident of the us is when a person has been granted a " green card ", its a whole application process where docs have to be submitted.
C) Incorrect . Naturalized citizenship is granted after an approved application, documents are submitted and they complete a class. There are other requirements too.
The U.S. entered World War I because Germany embarked on a deadly gamble. Germany sank many American merchant ships around the British Isles which prompted the American entry into the war.
