[单选题]
Which of these statementsqk;904z:4x2r7l5 cdsdij nny/cj a ki are true qku+ nk ;kv6:wfor synovial joints?
I. The joint capsule produces synovial fluid
II. Synovial joints can move in one direction (plane)
III. Ligaments connect one bone to another
A. I only
B. II only
C. I and III
D. I, II and III