Please answer the following question: Information: - Sony Music Entertainment Australia is the predominant record label operated by Sony Music Entertainment in Australia. - So Fresh : The Hits of Spring 2003 part of the Australian best - selling So Fresh series . It was released c. August 2003 . - Australia, officially the Commonwealth of Australia, is a country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands. It is the world's sixth-largest country by total area. The neighbouring countries are Papua New Guinea, Indonesia and East Timor to the north; the Solomon Islands and Vanuatu to the north-east; and New Zealand to the south-east. Australia's capital is Canberra, and its largest urban area is Sydney. - So Fresh is a compilation album series produced and skewed by Sony Music Australia (formerly Sony BMG Music Entertainment between 2005 and 2008), available in only Australia. It is released every three months and is usually composed of a mixture of tracks recorded by artists signed to Sony and Universal Music Australia. The tracks are mainly the biggest Top 40 hits of the season. It replaces the series "Hit Machine". Given the information above, choose from the list below the object entity that exhibits the relation 'instance of' with the subject 'so fresh: the hits of spring 2003'. Choices: - area - compilation album - continent - country - island - machine - mixture - music - series - three - urban area
Answer:
compilation album