David uses the coordinate grid below to locate places he visits in a day.



He starts from school, which is at the location indicated by the point on the grid above. He then walks to the library 5 units west. After the library, he goes to the gym, which is 6 units north. From the gym, he goes to his guitar class, which is 3 units west. Which of the following is the location of his guitar class?
A.
point (-6,2)
B.
point (2,-6)
C.
point (4,2)
D.
point (1,-6)