"P<span>layful" is the adjective describing "kittens." </span>
C is correct because they have we and a place and what they doing
I would say 'd'. It's always better to give a fresh look to your paper.
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The answer is c. Theo, is there a bug on my back?
This is because for the other three sentences, the commas do not agree with the places they were put in. If you read the sentences aloud, you can hear that it sounds awkward.