Answer:
B
Explanation:
You do not need to know what bone density is when you are relating it to fitness because it has no relevance.
Sudden impact to the joints (i.e. backward or forward force) can cause a dislocation which can either be a complete dislocation or a partial dislocation. A joint dislocation can damage adjacent structures usually by nerve and vessel impingement causing parethesias and paralysis. Manual correction of the dislocated joint is often favored.
