What is the correct explanation for why commas are used in the following sentence?
"The governor, who has many vacancies in her cabinet, has not made good on many of her campaign pledges."
AThe commas appear after introductory information.
BThe commas set off nonessential information: "The governor has not made progress on many of her campaign pledges" makes sense without the "who" clause.
CThe commas are not used correctly in this sentence, so there is no reason for them to be there.
"The governor, who has many vacancies in her cabinet, has not made good on many of her campaign pledges."
AThe commas appear after introductory information.
BThe commas set off nonessential information: "The governor has not made progress on many of her campaign pledges" makes sense without the "who" clause.
CThe commas are not used correctly in this sentence, so there is no reason for them to be there.