HELP FAST! AND NO LINKS! There is a line segment called AB (not pictured). The coordinates of point A are (6, 2), and the coordinates of point B are (2, 6). AB is transformed to form A'B', which is shown on the graph. Which transformation below caused AB to transform into A'B'?

A. a reflection across the x-axis

B. a counter-clockwise 90 degree rotation about the origin

C. a reflection across the y-axis

D. a translation 3 units down and 7 units left ​