Final answer:
The correct punctuation for the sentence is to use an em dash to separate the introductory phrase from the main clause.
Step-by-step explanation:
The correct punctuation for the sentence is:
The white-sand beaches, the tropical weather, and the beautiful hiking trails -- this was what drew Tai to Fiji every summer.
The sentence should use an em dash (--) to separate the introductory phrase from the main clause.
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