Eliza's appearance as a prim and proper beautiful young lady coupled with her perfect English accent surprised the guests; and they began to speculate as to where she came from. As they listened to her talk, they found her weird but Prof. Higgins explained that it was the "new small talk."
He asks her if she is going to leave him unsatisfied for the night and she asks how can she satisfy him.
The correct answer is option B. "The author should provide more information about the person quoted". In this example the author is citing "Donald Begha" to state that texting while driving is almost as dangerous as drinking and driving because of the number of auto accidents that they cause. Since the author is using an important statement it would be useful to give more information about "Donald Begha" and how it is an authorized person to make the statement.
Furthermore. It is used to add onto something that has been already said.