The correct option is D Both A and B
An intervertebral disc is made up of two parts as the anulus fibrosus and the nucleus pulposus. The anulus fibrosus is the outer layer of the disc, that encompasses the gel-like nucleus pulposus inside the disc. Anulus fibrosus is made up of strong layers of collagen fibers woven together at varying angles, which gives structure to the disc. The nucleus pulposus contains loose fibres suspended in a mucoprotein gel and it helps to distribute pressure evenly across the disc.
Thus, the correct answer is option (C), 'Both A and B'.