Explanation:
The correct option is 'c'. The common peroneal (fibular) nerve is highly vulnerable to traction injuries during traumatic knee dislocations, particularly those involving disruption of the posterolateral corner (PLC) or posterolateral dislocations. Injury to this nerve leads to foot drop (loss of ankle dorsiflexion and eversion) and sensory loss over the lateral leg and dorsum of the foot.

Reference: Niall DM, Nutton RW, Keating JF. Palsy of the common peroneal nerve after traumatic dislocation of the knee. J Bone Joint Surg Br. 2005;87(5):664-667.