Answer the following question given this paragraph: 

which the articulating surfaces of the bones contact each other. Also unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly against each other, allowing for increased joint mobility.


Q: Unlike fibrous or cartilaginous joints, the articulating bone surfaces at what joint type are not directly connected to each other with fibrous connective tissue or cartilage?

 Choices:

- proximal joint

- knee joint

- polymeric joint

- synovial joint

A:
synovial joint
