The correct answer is - number 2.
Guam is an island that is a territory of the United States. It is located midway between Papua New Guinea and Japan, in the western part of the Pacific Ocean, in the region referred to as Micronesia.
This small island has a population of only around 160,000 people, most of which are natives, and the mainland US citizens being the second largest group. The official languages on the island are Chamorro and English.