Answer :
The answer is D because ligaments, cartilage, muscles, and tendons help to hold your bones together, not skin. All of the other options are functions of skin.
The parts that hold the bones of the skeleton together are the ligaments, muscles, joints and tendons. The skin is the largest part of the body which enables perspiration which A> keeps your body cool when you exercise and B> releases waste products like urea and salts and C>helps prevent pathogens from entering your body.