Teams A and B are playing a game of tug of war. The forces in which they pull at the rope are represented by vectors A and B, respectively. Which option best describes the meaning of the following statement?
1) The forces of teams A and B are equal.
2) The forces of teams A and B are in opposite directions.
3) The forces of teams A and B are perpendicular to each other.
4) The forces of teams A and B are parallel to each other.