Bone formation by endochondral ossification occurs in a hyaline cartilaginous mold. Therefore, we can confirm that the option a is the correct choice.
Endochondral ossification is a process in which bone formation occurs from a cartilage mold, this process occurs in embryonic development where cartilage tissue is first formed as a mold and then it calcifies. This process occurs from the inside to the outside. Endochondral ossification is important for the formation of long bones, vertebrae, pelvis, and the bones at the base of the skull.
Therefore, we can confirm that bone formation by endochondral ossification occurs in a hyaline cartilaginous mold.
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