Which of the following allows for smooth movement of bone surfaces against one another at joints?

Vitamins ________, ________, and ________ all serve as antioxidants

Fill in the blank(s) with correct word

_______________________ offers voluntary, supplemental medical insurance to help pay for physician's services, outpatient hospital services, medical services, and medical-surgical supplies not covered by the hospitalization plan

A. Medicare Part A B. Medicare Part B C. Medicare Part C D. Medicare Part D