Question

Which sentence uses correct punctuation?
A. Regina loved diving, in fact; she was an expert at it.
B. Regina loved diving, in fact, she was an expert at it.
C. Regina loved diving in fact she was an expert at it.
D. Regina loved diving; in fact, she was an expert at it.

Answer 1

The answer is D, Regina loved diving; in fact, she was an expert at it

Answer 2

The answer to your question would be that the sentence that uses correct punctuation is the following one: Regina loved diving; in fact, she was an expert at it. That is, the correct option would be D.

This is the correct version of the sentence because you should use a semicolon when you have a conjunctive adverb linking two independent clauses.