**Core Concept**
The Rashtriya Swasthya Bima Yojna (RSBY) is a government-sponsored health insurance program aimed at providing financial protection to disadvantaged populations in India. It is a part of the National Health Mission (NHM) and is designed to reduce the financial burden of healthcare expenses on the poor.

**Why the Correct Answer is Right**
The RSBY program provides a health insurance cover of up to ₹30,000 per family per year, with a premium of ₹30 per family per year. The insurance cover includes hospitalization expenses, pre- and post-hospitalization expenses, and expenses for diagnostic tests. The program is implemented through a partnership between the government and private insurance companies.

**Why Each Wrong Option is Incorrect**
**Option A:** This is incorrect because the RSBY program is not primarily focused on providing health insurance to the elderly population.
**Option B:** This is incorrect because the RSBY program is not a government-funded health insurance scheme for employees of the central and state governments.
**Option C:** This is incorrect because the RSBY program is not a public-private partnership for providing health insurance to the urban population.

**Clinical Pearl / High-Yield Fact**
The RSBY program has been successful in increasing the utilization of healthcare services among the target population, particularly among women and children. It has also helped in reducing the out-of-pocket expenditure on healthcare.

**Correct Answer:**
Correct Answer: D. RSBY is a government-sponsored health insurance program for the economically vulnerable populations.