What is the most effective revision to make in sentence 23?
(23) For example, the iguana, a WebMD article states, sneezes more often than any other animal and more efficiently.
For example, the iguana sneezes more often and more efficiently than any other animal is what a WebMD article states.
For example, a WebMD article states that the iguana sneezes more often and more efficiently than any other animal.
For example, a WebMD article states this, the iguana sneezes more often and more efficiently than any other animal.
No revision is needed in this sentence.