Final answer:
The proper sentence choice is 'Even though Candice already has a kitten at home, she adopted two more cats.'
Step-by-step explanation:
The correct sentence with proper punctuation is: Even though Candice already has a kitten at home, she adopted two more cats. In this sentence, a comma is placed after the word 'kitten' to separate the two clauses - 'Even though Candice already has a kitten at home' and 'she adopted two more cats'. The comma helps to clarify the sentence structure and make it easier to read and understand.
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