Final answer:
The correct sentence is: She had to decide what she wanted for dessert; the bakery had cakes, cookies, and brownies.
Step-by-step explanation:
The sentence that is punctuated correctly is:
She had to decide what she wanted for dessert; the bakery had cakes, cookies, and brownies.
In this sentence, a semicolon (;) is used to separate two independent clauses that are closely related. The semicolon is used in this case to show a stronger connection between the two clauses than a period or a comma would. It indicates that the decision of what she wanted for dessert is directly related to the fact that the bakery had cakes, cookies, and brownies.
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