Which explains why countries, including the united states, fought to control island nations in the late 1800s?
a: nations fought to control the islands to protect the missionaries who were there to spread christianity.
b: nations fought to control the islands to use them as supply and refueling stations for ships at sea.
c. nations fought to control the islands in order to establish democratic governments around the world.
d. nations fought to control the islands for their proximity to the caribbean, where tensions with the spanish were rising.