Answer:
Island nations are those that are surrounded entirely by water and may have more than one island comprising their nation.
There are 48 such nations in the world ranging from the famous ones like the UK and Japan to less known ones like Kiribati.
You included no options so the list of island nations in addition to Taiwan include;
- Indonesia
- Japan
- Philippines
- United Kingdom
- Madagascar
- Australia
- Sri Lanka
- Haiti
- Cuba
- Dominican Republic
- Papua New Guinea
- Singapore
- Ireland
- New Zealand
- Jamaica
- Bahrain
- Trinidad And Tobago
- Timor Leste
- Mauritius
- Cyprus
- Fiji
- Comoros
- Solomon Islands
- Cape Verde
- Maldives
- Malta
- Brunei
- Bahamas
- Iceland
- Vanuatu
- Barbados
- Sao Tome And Principe
- Samoa
- Saint Lucia
- Kiribati
- Micronesia
- Grenada
- Saint Vincent And The Grenadines
- Tonga
- Seychelles
- Antigua And Barbuda
- Dominica
- Marshall Islands
- Saint Kitts And Nevis
- Palau
- Tuvalu
- Nauru