You are taking a line dancing class. Which actions will get you back to your original position?
A3 steps backward, then 0 steps forward
B0 steps forward, then 4 steps backward
C3 steps forward, then 3 steps backward
D4 steps backward, then another 4 steps backward
A3 steps backward, then 0 steps forward
B0 steps forward, then 4 steps backward
C3 steps forward, then 3 steps backward
D4 steps backward, then another 4 steps backward