It means how many women are there in 1000 of men. in current analysis india's sex ratio is about 1020 women per 1000 men.

The correct answer is option D, India.

Explanation:
Sex ratio is a demographic indicator that measures the number of females per thousand males in a population. It is calculated by dividing the number of females by the number of males and multiplying the result by 1000. This ratio provides insights into the gender distribution within a population.

India is a country in South Asia with a population of over 1.3 billion people. It is known for its diverse culture, rich history, and significant population. In India, the sex ratio is calculated using the formula: female population divided by male population multiplied by 1000.

Reasons for Calculating Sex Ratio in India:
The calculation of sex ratio is important in India due to various reasons:

1. Gender Imbalance: India has been experiencing a skewed sex ratio for many years, with a preference for male children leading to practices such as female infanticide and sex-selective abortions. Calculating the sex ratio helps to identify areas where gender imbalances are prevalent.

2. Women's Empowerment: The sex ratio is an important indicator of women's empowerment and gender equality. A higher sex ratio indicates better gender balance and opportunities for women in society.

3. Social Issues: Calculating the sex ratio helps to identify and address social issues such as dowry-related problems, child marriages, and trafficking of women. It provides insights into the overall well-being and safety of women in society.

4. Policy Formulation: The sex ratio is an essential parameter for policy formulation in areas such as healthcare, education, and employment. It helps in understanding the specific needs and challenges faced by women and formulating appropriate policies to address them.

5. Monitoring Progress: Regularly calculating the sex ratio helps in monitoring progress over time. It allows policymakers and researchers to analyze trends, identify improvements, and take necessary actions to address any imbalances.

Conclusion:
The sex ratio in India is calculated using the formula: female population divided by male population multiplied by 1000. This calculation provides valuable insights into the gender distribution within the country and helps in addressing issues related to gender imbalance, women's empowerment, and social development.