Explanation:
The correct option is 'b'. The extensile lateral approach is the classic workhorse for ORIF of displaced intra-articular calcaneus fractures. It provides excellent visualization of the lateral wall, the posterior facet (subtalar joint), and the calcaneocuboid joint. However, it requires meticulous soft tissue handling, as it is associated with a high rate of wound healing complications and flap necrosis.

Reference: Benirschke SK, Sangeorzan BJ. Extensive intraarticular fractures of the foot. Surgical management of calcaneal fractures. Clin Orthop Relat Res. 1993;(292):128-134.