Identify the transformation that carries the figure onto itself.
A) reflect across the line y=7 and rotate 270° clockwise about (-7,8)
B) reflect across the line x=7 and rotate 270° clockwise about (-7,8)
C) reflect across the line y=-7 and rotate 540° clockwise about (-7,8)
D) reflect across the line x=-7 and rotate 540° clockwise about (-7,8)