Susan has a blue skirt, a green skirt, and a gray skirt. She also has a white sweater, a purple sweater, and a green sweater. If she randomly selects her outfit, what is the probability she will select the gray skirt and the purple sweater to wear to work that day? Answer options with 5 options A. one-ninth B. one-sixth C. one-third D. two-thirds E. 2