The correct answer is (a) Solomon Islands.
Melanesia is a subregion of Oceania located in the southwestern Pacific Ocean. It is made up of the Melanesian Islands, which are the islands of New Guinea, New Britain, New Ireland, Bougainville, Solomon Islands, Vanuatu, Fiji, and the Santa Cruz Islands.
The Solomon Islands are a nation in Melanesia in the southwestern Pacific Ocean. It is composed of six main islands and over 900 smaller islands and atolls. The capital and largest city is Honiara, located on Guadalcanal Island.
The Gilbert Islands are an island group in the Pacific Ocean that forms part of the Republic of Kiribati. The islands are located in the western Pacific Ocean, about halfway between Hawaii and Australia. The capital and largest city is Tarawa Atoll.
The Society Islands are a group of islands in French Polynesia in the Pacific Ocean. The islands are located about 2,000 kilometers (1,200 mi) northeast of New Zealand. The capital and largest city is Papeete, located on Tahiti.
The Marshall Islands are a nation in Micronesia in the Pacific Ocean. It is composed of 29 atolls and five single islands. The capital and largest city is Majuro.