Which statement is an example of problem-solution organization?

 A.After you pass the traffic light at McGregor Avenue, take the next right. Our house is the third house from the corner. B.Need a job? Come to the job fair on November 15 to learn about opportunities in the greater Chicago area. C.Harvey's Pretzel Stand will close due to its inability to secure the special salts needed for the pretzels. D.Our toothpaste is less expensive than the competition, and it makes your teeth whiter, too.