Why Is Bone Vascular but Cartilage Avascular

Multiple Choice

Why is bone vascular but cartilage avascular?

A) Diffusion alone could not provide enough nourishment to bone cells, as it does for cartilage.
B) Vascular tissue makes the bone lighter.
C) Vascular tissue adds to the strength of the bone.
D) Only bone contains lacunae.
E) There is little space for arteries and veins in cartilage.