The answer would "B"
Hemorrhage is the medical term for significant and potentially life threatening bleeding, which is usually not something particularly common as a sporting injury.
Arthritis is actually prevented by constant sporting activities and is more degeneration as a result of old age.
You<span> can increase </span><span>your flexibility</span>
The normal force(the force pushing up from a flat surface) is equal to the force of gravity (the force pushing down on the object) at 5N so they cancel each other out. The other two forces are going in opposite directions, one positive and one negative. Subtracting 10N-5N would give you the amount of force that is not canceled (5N) in the direction of the biggest force (to the left)