___ most traditionally modeled as a fixed beam with a point end load. When the load is applied, bending force acts on the fulcrum between the beam and the material which causes deflection. This can be calculated using traditional beam theory. Once the hook goes past the latch, it should return to its original shape.

A) Catheters
B) Snap-fit joints
C) Diabetic foot ulcers
D) Respiratory infections