Final answer:
Accidents related to tail sweep or load swing usually happen due to overloading the forklift, compromising its stability and increasing the risk of accidents.
Step-by-step explanation:
The question pertains to the reasons for accidents involving tail sweep or load swing with forklift operations. These types of accidents typically occur due to B) Overloading the forklift. When a forklift is overloaded, the stability of the vehicle is compromised, which increases the risk of the load swinging uncontrollably or the rear end of the forklift, also known as the tail, sweeping out. Proper training of operators includes understanding the load capacity of the forklift and the physics behind the lifting and moving of heavy loads to prevent such accidents.