As bones lengthen, what occurs at the zone of hypertrophy in the metaphysis?
A. Chondrocytes multiply.
B. Cartilage is calcified when minerals are deposited in matrix between lacunae.
C. Chondrocytes become larger.
D. Chondrocytes die, and walls between lacunae break down.
E. Osteoblasts deposit matrix, and spongy bone is produced.
Answer: C
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