## Core Concept
The Integrated Child Development Services (ICDS) is a government program in India aimed at providing nutritional and educational support to children and their mothers. A key component of the ICDS is the Anganwadi, a type of rural child care center. The Anganwadi provides a range of services including supplementary nutrition, immunization, health check-ups, and education.

## Why the Correct Answer is Right
The correct answer, . 1000 population, reflects the general guideline for the coverage area of an Anganwadi center under the ICDS. The program aims to make services accessible to the most vulnerable sections of the population by ensuring that every Anganwadi caters to a specific population size, facilitating easy access to its services.

## Why Each Wrong Option is Incorrect
* **Option A:** . 500 population - This is not the standard population coverage for an Anganwadi. While it might seem like a good strategy to have more centers for better accessibility, the specified population coverage is generally considered optimal for resource allocation.
* **Option B:** . 2000 population - Although this might seem reasonable, it does not align with the typical guidelines provided for Anganwadi coverage.
* **Option C:** . 5000 population - This option suggests a much larger coverage area than what is typically recommended for an Anganwadi, potentially making services less accessible to the target population.

## Clinical Pearl / High-Yield Fact
A critical point to remember is that Anganwadi services are crucial for early childhood development, providing not just nutrition but also acting as a platform for delivering basic healthcare and educational interventions. The positioning of Anganwadi centers to serve approximately 1000 population is a strategy to ensure that these services are within reach of those who need them most.

## Correct Answer: . 1000 population