This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lower Limb and Foot & Ankle Problems, Subject name: Orthopaedics
Spot diagnosis for foot deformity? 
Select and explain. 
A. CTEV, B. Congenital vertical talus, C. Rocker bottom foot, D. Pes Cavus
C: Rocker bottom foot
Answer: C: Rocker bottom foot 
Explanation: Ans. (c) Rocker bottom footThe image shows convexity at the sole of the foot sole. In CTEV the bilateral feet and toes point inwards facing each other.