15. Matilda just graduated from college. In order to devote all her efforts to college, she didn'thold a job. She is going to tour around the country on her motorcycle for a month before she startslooking for work. Other things the same, the unemployment rate
(A) increases, and the labor-force participation rate decreases.
(B) and the labor-force participation rate both increase.
(C) increases, and the labor-force participation rate is unaffected.
(D) and the labor-force participation rate are both unaffected.