Ronald observes a large island off the coast of Indonesia on a map. A few months later, he observes that there are many smaller islands in place of the large one he had seen earlier. Which of these could have caused this change?

o A tsunami

o A mudslide

o Wind erosion

o Volcanic eruption

All of the given options could potentially cause the change from a large island to many smaller islands, but the most likely cause would be a volcanic eruption. A volcanic eruption can result in the formation of new islands or the breaking up of a larger landmass into smaller islands due to lava flows, volcanic ash deposition, or tectonic activity.