The 19th amendment displayed the greatest continuity with which of the following amendments?

The Zimmerman Note functioned for World War I in the same way that which of the following functioned for the Spanish American War?

The efforts of the WCTU and others to get the successful ratification of the 18th amendment were similar to the work of what antebellum leader?

The sinking of the Maine, preceding the Spanish American War, had a similar impact on public opinion to what event(s) preceding the Revolutionary War?