The best answer is D.Cancers that develop in connective tissue cells are classified as Sarcomas. A tumor grows in soft connective or supportive tissues. Examples of connective tissues are bones and muscles.There are two further classifications of sarcomas.Osteosarcoma - a malignant tumor grows in the bones.Soft tissue sarcoma - a malignant tumor grows in the muscles, nerves, fibrous tissues, blood vessels, or deep skin tissues.Sarcomas are rare compared to Carcinomas. Although they are rare, there are about 50 various classifications of sarcoma.
The good way to recognize if your exercising efficiently is when you feel muscle fatigue. The increase of hunger is also noticeable when you exercise effectively. There are 3 things you need to burn during exercise before reaching to fats.So, make sure you do smart exercise.
