Correct answer only me!

lindsey tripped and cut her knee while she was competing in a track event. when lindsey went to the doctor, the doctor told her she may have bruised her kneecap. the cut on lindsey's knee and her bruised kneecap best represent injuries to which levels of organization within her body?

a
they represent injuries to skin and bone. skin and bone are both organs.

b
they represent injuries to blood and nerves. blood is an organ and nerves are a tissue.

c
they represent injuries to bone and muscle. bone is an organ system and muscle is a cell.

d
they represent injuries to muscle and nerves. muscle and nerves are both organ systems.