Explanation:Correct Option: D. While CoC bearings have the lowest volumetric wear rates, they are highly sensitive to malpositioning. Component malposition can lead to microseparation during the swing phase, causing the ceramic head to strike the edge of the ceramic liner upon heel strike. This edge loading creates 'stripe wear' and the clinical phenomenon of joint squeaking. (Ref: Walter et al., J Arthroplasty, 2008)