**Core Concept**
Sputum examination under a tuberculosis (TB) program (TP) is crucial for diagnosing pulmonary TB, especially in patients presenting with symptoms suggestive of TB infection.

**Why the Correct Answer is Right**
Hemoptysis (coughing up blood) and chest pain are classic symptoms associated with pulmonary TB. When a patient presents with these symptoms, a sputum examination under the TB program is essential to rule out TB infection. Persistent cough of 1-2 weeks duration (b) can also be a symptom of TB, and examining the sputum can help confirm the diagnosis. The World Health Organization (WHO) and the Revised National Tuberculosis Control Programme (RNTCP) guidelines recommend sputum examination for patients with symptoms suggestive of TB.

**Why Each Wrong Option is Incorrect**
**Option A:** Cough of 1-2 weeks duration (a) alone is not a specific symptom for TB; a cough can be caused by various respiratory infections. **Option B:** Persistent cough of 1-2 weeks duration (b) is a symptom that may warrant sputum examination, but it is not as specific as hemoptysis or chest pain. **Option E:** Intermittent fever can be a symptom of many infections, including TB, but it is not specific enough to warrant a sputum examination under the TB program.

**Clinical Pearl / High-Yield Fact**
A key aspect of TB diagnosis is the symptom-based approach. Patients presenting with hemoptysis, chest pain, or persistent cough of 1-2 weeks duration should undergo sputum examination under the TB program to rule out TB infection.

**Correct Answer Line**
✓ Correct Answer: D. cd. Hemoptysis and chest pain are key symptoms that warrant sputum examination under the TB program.