Which of the following events did NOT influence the U.S. to get involved in WWI? A) The invention of the U-boat

B) Sympathy toward the British

C) The sinking of the Lusitania

D) The Zimmerman Note

D) The Zimmerman Note

I hope it is correct

The scientific method begins with scientists forming questions, or hypotheses, and then acquiring the knowledge through observations and experiments to either support or disprove a specific theory. "Empirical" means "based on observation or experience," according to the Merriam-Webster Dictionary