SAT English Practice Question

The best way to ensure that a piece of writing is clear is to carefully consider its structure. For example, it is important to use transitions to connect ideas and to use parallel structure to create a sense of balance. Additionally, it is important to avoid using unnecessary words and phrases. The following sentence demonstrates one way to make a piece of writing more concise, and it also demonstrates one way to ensure that the sentence has a clear and logical structure. The author, which is a well-known writer, is currently working on a new novel.

1. A.The author, who is a well-known writer, is currently working on a new novel.
2. B.The author, being a well-known writer, is currently working on a new novel.
3. C.The author, a well-known writer, is currently working on a new novel.
4. D.The author, whom is a well-known writer, is currently working on a new novel.