## **Core Concept**
The child sex ratio is a critical demographic indicator that reflects the number of females per 1000 males in the 0-6 age group. It is an essential parameter for assessing gender imbalance and discrimination against females in a population. The Census of India conducts nationwide surveys to gather data on various demographic parameters, including the child sex ratio.

## **Why the Correct Answer is Right**
According to the Census 2011 data, the child sex ratio in India was 918 females per 1000 males in the 0-6 age group. This figure indicates a significant decline in the child sex ratio over the years, reflecting a preference for male children and a consequent neglect of female children. The correct answer, 918, is a specific data point that highlights the demographic challenge of gender imbalance in India.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is incorrect because it does not correspond to the correct child sex ratio as per the Census 2011 data.
- **Option B:** This option is incorrect because it also does not match the correct figure of 918 females per 1000 males.
- **Option D:** This option is incorrect as it is not the correct child sex ratio according to the Census 2011.

## **Clinical Pearl / High-Yield Fact**
A low child sex ratio is a significant concern as it may indicate sex-selective practices, such as female feticide or neglect of female children. This issue has important implications for public health, social policy, and gender equality. Remember that the child sex ratio is a key indicator of a society's attitude towards gender and can have long-term demographic and socioeconomic consequences.

## **Correct Answer:** C. 918.