Question

what lubricates synovial joints?
a fibrous connective tissue
b synovial fluid
c fibrocartilage
d ligaments

Explanation:

Synovial fluid is the substance that lubricates synovial joints, reducing friction between the articulating surfaces of bones. Fibrous connective tissue, fibrocartilage, and ligaments have different functions related to joint - structure and stability rather than lubrication.

Answer:

B. Synovial fluid