Which of the following events occurred after the US entered WW1?

Question

A.Archduke Franz Ferdinand assassinated
B.German U-boat sinks the Lusitania
C.Selective Service Act passed
D.Zimmermann Note intercepted by the British

Answer 1

C, si Senor, C ---

Pax--------------

Answer 2

C.Selective Service Act passed - once in the war, the US looked at a draft process

a was before the war - had to do with it starting, b and d were events that caused the US to enter the war