Most people don't have any symptoms, but they can still infect other people through sexual contact.
Answer:
Melanoma signs and symptoms
Explanation:
A large brownish spot with darker speckles.
A mole that changes in color, size or feel or that bleeds.
A small lesion with an irregular border and portions that appear red, pink, white, blue or blue-black.
A painful lesion that itches or burns.
Now that I think about it, it would be A and B because you need your bones for support and they also protect your organs. As for D it's the other way around your muscles help your bones move.
Try to think about what you think your doing and try stopping it
