Answer:
The correct answer is option D. "Growth plate".
Step-by-step explanation:
Growth plates are areas at which new bones grow, mostly located within near the ends of long bones. Growth plates contains cartilage cells that divide and increase the size of the bone until adulthood. Therefore, these structures are common in children and teens and most of time they close near the end of puberty (13-15 for girls, and 15-17 for boys).