Question

Triangle ABC is rotated about the origin to become triangle A'B'C'. Which of the following best describes the rotation of triangle ABC that results in triangle A'B'C'? http://focus.florida-achieves.com/(S(d4q2s055u2krd255x41vqi45))/student/images/math/7/7G42MC5.gif

A. Triangle ABC is rotated 90 degrees counterclockwise.
B. Triangle ABC is rotated 45 degrees counterclockwise.
C. Triangle ABC is rotated 90 degrees clockwise.
D. Triangle ABC is rotated 45 degrees clockwise.