Step 1: Understanding scoliosis.
Scoliosis is a medical condition characterized by an abnormal lateral curvature of the spine. It primarily affects the vertebral column.
Step 2: Explanation of the options.
• (A) Foot: Incorrect. Scoliosis affects the spine, not the feet.
• (B) Head: Incorrect. Scoliosis does not affect the head.
• (C) Vertebral column: Correct. Scoliosis is a disorder related to the vertebral column (spine).
• (D) Hand: Incorrect. Scoliosis does not affect the hands.
Step 3: Conclusion.
Therefore, the correct answer is (C) Vertebral column.
Final Answer: Vertebral column.