Which islands in Hawaii have public bus systems?

The option stating that Kauai, Oahu, Maui, and Hawaii have public bus systems is correct because each of these islands has established bus services that are accessible to residents and visitors.

Oahu operates TheBus, which is a comprehensive and highly utilized public transportation system, covering a wide range of routes across the island and providing an essential service for tourists looking to explore without renting a car. Maui has a public bus system known as Maui Bus, which serves various areas on the island and enables easier access to popular destinations. The island of Hawaii, also known as the Big Island, offers the Hele-On Bus service, which connects different towns and attractions, making transportation more manageable for those traveling in the area. Kauai features a public bus system called the Kauai Bus, providing transportation services to key locations around the island.

When considering the other options, it is essential to note that while some islands may have limited transportation services or shuttles, not all have comprehensive public bus systems like the islands mentioned in the correct answer. For instance, Lanai and Ni'ihau do not possess established public bus systems, which limits their inclusion in options that suggest they have such services.