Answer:
Step-by-step explanation:
The complex sentence is:
"He had taken the cupcakes while Carolyn wasn't looking."
A complex sentence is a sentence that contains an independent clause (a complete thought) and at least one dependent clause (an incomplete thought that relies on the independent clause for meaning). In this sentence, "He had taken the cupcakes" is the independent clause, and "while Carolyn wasn't looking" is the dependent clause
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