Connective Tissue and Cartilage

In the process of endochondral ossification, which zone of the growth plate is responsible for the longitudinal growth of bone through active cell division?

A 28-year-old male presents with progressive joint pain and stiffness affecting his knees and ankles for the past 6 months. On examination, there is mild swelling and reduced range of motion. Imaging shows early degenerative changes in the articular surfaces. A biopsy of the affected cartilage is performed. Under the microscope, the histologist notes loss of the normal basophilic staining in the matrix and reduced cellularity in the superficial zone. Which of the following best explains the histological finding observed in this patient's cartilage?

Which type of cartilage is characterized by the presence of elastic fibers in addition to collagen fibers and proteoglycans in its matrix?