It is called mode I think
Answer:
an instance of reflecting especially : the return of light or sound waves from a surface. 2 : the production of an image by or as if by a mirror. Here is an example , A reflection is defined as a thought or writing about something that happened in the past, or what one sees when looking into a mirror or a body of water. What a girl sees in the mirror when she puts on makeup is an example of reflection.
Explanation: hope that helps
The correct answer is (a.) synovial joints. The synovial joint has the least range of motion. Its function is to join or combines bones in the synovial cavity. The synovial is mostly composed of synovial fluid (which can be found in knees.)