I think it’s A
I think so because the Synovial membrane acts as a lubricator, much like how oil lubricated the joints of the tin man. If the lubricants were removed, the friction would increase as there is no oil to decrease the friction and let the bones function properly
Adequate means enough to satisfy
so
Inadequate must be not enough to satisfy
or can't afford expectations
Deficiency disease + A
Niacin (B3) deficiency + D
Vitamin A deficiency + B
Vitamin B1 deficiency + C
Vitamin D deficiency + E
Vitamin C deficiency + F
Hope i helped
Getting home on time
The only reason I say that is because none of the other options seem like a benefit.
With disease incorporated, the term would be <u>Dystrophy</u>. A group of disease works to break down your muscles.