**Core Concept**
Tuberculosis of the spine, also known as Pott's disease, is a form of extrapulmonary tuberculosis that affects the vertebrae and intervertebral discs. It is characterized by a destructive process that leads to vertebral body collapse, kyphosis, and neurological compromise.

**Why the Correct Answer is Right**
Exaggerated lumbar lordosis is not a typical feature of tuberculosis of the spine. In fact, the disease often leads to vertebral body collapse and kyphosis, resulting in a loss of lumbar lordosis. The primary symptoms of tuberculosis of the spine include back pain, stiffness of the back, and the presence of cold abscesses, which are characteristic of this condition.

**Why Each Wrong Option is Incorrect**
**Option A:** Back pain is indeed one of the earliest symptoms of tuberculosis of the spine, often presenting as a dull ache or a sharp pain that worsens with movement.
**Option B:** Stiffness of the back is a common feature of tuberculosis of the spine, resulting from inflammation and fibrosis in the affected spinal segments.
**Option D:** Cold abscesses are a hallmark of tuberculosis of the spine, forming as a result of the body's attempt to wall off the infection and prevent its spread.

**Clinical Pearl / High-Yield Fact**
Tuberculosis of the spine often presents with a triad of symptoms: back pain, stiffness of the back, and the presence of cold abscesses. Early recognition and treatment are crucial to prevent neurological compromise and spinal deformity.

**✓ Correct Answer: C. Exaggerated lumbar lordosis**