SAT English Practice Question

The playwright, a prolific writer of historical fiction, has a reputation for scrupulously researching his scripts. He spends months, sometimes years, poring over historical documents to ensure accuracy. His attention to detail is evident in his choice of language, his depiction of settings, and his portrayal of characters.

1. A.He spends months, sometimes years, poring over historical documents to ensure accuracy, and his attention to detail
2. B.He spends months, sometimes years, poring over historical documents to ensure accuracy, and this attention to detail
3. C.Spending months, sometimes years, poring over historical documents to ensure accuracy; his attention to detail
4. D.Spending months, sometimes years, poring over historical documents to ensure accuracy, his attention to detail