Which of the following is the BEST way to select a coordinate system? A) make sure that the acceleration vector falls at a 45° angle from the x-axis
B) make sure that the coordinate system has the x-axis as vertical and the y-axis as horizontal
C) make sure that any acceleration vector falls along one of the major axes of the coordinate system
D) make sure that the coordinate system has the x-axis as horizontal and the y-axis as vertical

I'm fairly certain I had this question before and the answer wasn't D