The correct manner to quote would be:
D.
Wrigley Houston states, "Today's teens are so reliant on technology that learning to drive is no longer a high priority. . . Studies show that over 20% of 16 year olds socialize online more than they do in person.
Explanation:
It is clear from the sentence that the need of the second statement is for rhetoric and to present the point of the passage but is not entirely needed when it is to be quotes so it is to be omitted when put up.
There are two requirements for that
-The removal of the whole of second line
-The use of the phrase '....' to indicate that a part of the quote has not been told because it is not relevant to the point that is being made.
According to this the statement given above is correct.
