I’m not an expert on the field, but based off of process of elimination and what I do know, I’d say b.
Gliding Joints are found between bones that meet at flat or mostly flat surfaces. They allow for gliding movement of the bones past each other.
Condyloid joints allow for two planes of movement in flexion, extension, adduction, abduction, and/circumduction. These generally follow a convex/concave relationship between the bones that are joined via this joint.
You can find both types in the wrist.
B. because entry points are vital to the spread of infection
The most likely cause of death in 1900 would be pneumonia/influenza, while the leading cause of death in 2006 was heart disease. ... Heart disease and cancer were two of the most common causes of death in 2006.