1. to prevent the bones from twisting in the wrong direction what is the proper angle to set a pole angle for a typical human animation?
a. 15
b. 180
c. -90
d. -45

2. what represents a weighting of zero in the weight painting mode?
a. the color blue
b. the ratio 1: 1
c. the color red
d. the ratio 2: 1

(these questions are asking about the program blender)