To accurately identify the event best described by the cartoon from the early 1900s, it would be helpful to see the cartoon itself or have a description of its imagery and themes. However, I can provide brief context about each option to help you make a more informed decision:
A. Monroe Doctrine: A policy established in 1823 that warned European nations against colonizing or interfering in the Americas.
B. Zimmerman Telegram: A secret communication sent by Germany to Mexico during World War I in 1917, proposing a military alliance against the United States, which angered the U.S. and contributed to its entry into the war.
C. Good Neighbor Policy: A diplomatic policy initiated by the U.S. in the 1930s aimed at improving relations with Latin American countries, not typically associated with cartoon art from the early 1900s.
D. Sinking of the Lusitania: The German U-boat sinking of the British ocean liner in 1915, which killed many Americans and turned public opinion against Germany, leading to increasing calls for the U.S. to enter WWI.
If the cartoon depicts themes of U.S. intervention in foreign affairs, tension with Germany, or maritime issues, it might relate more closely to the Zimmermann Telegram or the Sinking of the Lusitania. On the other hand, if it deals with the influence in the Americas, the Monroe Doctrine could fit.
Please provide additional details about the cartoon for a more precise identification.