Janine fell off her bike, cutting her knee and tearing the hyaline cartilage of her knee joint. At the doctor's office, she is told the cuts will heal in a few weeks, but the cartilage will take months. Using what you know about tissues, why does the cartilage take longer to heal?

• A. Cartilage is unable to regenerate because it lacks -blasts cells but epithelial tissue can regenerate. 
• B. Cartilage has limited blood supply while areolar tissue below the skin is vascular.  
• C. Cartilage has a more complex structure than epithelial or connective tissue proper, so it takes longer to heal. 
• D. The lacunae in cartilage make the healing process slower because the chondroblasts can't move.