Question

which sentence uses commas correctly? ms. henderson, who is a skillful wildlife photographer, lives close to a national park. ms. henderson who is a skillful wildlife photographer, lives close to a national park. ms. henderson who is a skillful wildlife, photographer lives close to a national, park. ms. henderson, who is a skillful wildlife photographer lives close to a national park.

Explanation:

Non-restrictive relative clauses (providing extra, non-essential information about a noun) need to be set off by commas on both sides. The clause "who is a skillful wildlife photographer" is extra information about Ms. Henderson, so it should be enclosed by commas. Other options either omit necessary commas, place commas incorrectly in the middle of a phrase, or fail to close the clause with a comma.

Answer:

Ms. Henderson, who is a skillful wildlife photographer, lives close to a national park.