Final answer:
In geometry, when segments AB and CD bisect each other at point K, segments AC and BD intersect at point K.
Step-by-step explanation:
In geometry, if segments AB and CD bisect each other at point K, the relationship between segments AC and BD is A) They intersect at point K. To understand this, imagine two intersecting line segments AB and CD, where they bisect each other at point K. Segment AC is formed by joining points A and C, and segment BD is formed by joining points B and D. Since segments AB and CD bisect each other, they intersect at point K. Therefore, segments AC and BD also intersect at point K.