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The spontaneous creation or variation on an established theme within an artistic work is known as jazz. Jazz is a very popular musical style that is beloved by many people around the globe.
Answer:
A would be correct.
Explanation:
The other ones are too random and its the only one that makes since to me. the first one could actually be a summary. Also nice Forky.
The predicate nominative in this sentence is state, because it is showing what Alaska became.