Answer:
The first Spanish settlement in what is now US continental soil was built in Florida. The very first Spanish settlement in the New World was built by Columbus on the Hispaniola island, which is today´s Dominican Republic.
Explanation:
D. It imposed taxes on merchants who used gold trade routes that passed through Ghana
Related to WW1:
Assassination of Franz Ferdinand
Lusitania
Unrestricted Submarine Warfare
Zimmerman Note
NOT Related to WWI:
Invasion of Poland
Munich Conference
Nazi Soviet Non Aggression Pact
Hope this helped! :)