Which is the BEST revision of the fragment below?

The doctor was an expert in medicine. In surgery as well.
(1 point)
The doctor was an expert in medicine and surgery.
In surgery as well as medicine. The doctor was an expert.
Expert in surgery and medicine, the doctor

was.

The best revision of the fragment is "The doctor was an expert in medicine and surgery."

To determine the best revision of the given fragment, we need to consider the coherence and clarity of the sentence.

The original fragment is not coherent because it is a run-on sentence, referring to the doctor's expertise in both medicine and surgery separately. To make it clearer, we can revise it as follows:

"The doctor was an expert in medicine and surgery."

This revision is clear, concise, and connects the doctor's expertise in both medicine and surgery.