Read the following sentence and then select the correct answer:
She is a renowned scientist, she does thorough research, and she is a leader among her peers.
Select the correction to this sentence that uses proper parallel structure.
She is a renowned scientist, a thorough researcher, and a leader among her peers.
She is a renowned scientist, good research, and she is known for being a leader.
She is a renowned scientist, also she does strong research, and people say she is a great leader.
She is a renowned scientist, likes to do research, and she is a leader among her peers.