The correct answer is C. 918.
The child sex ratio is the number of girls per 1000 boys in the age group 0-6 years. According to the 2011 census, the child sex ratio in Bihar was 918. This means that there were 918 girls for every 1000 boys in the age group 0-6 years in Bihar.
The child sex ratio is an important indicator of the status of women in a society. A low child sex ratio indicates that there is a preference for boys over girls, which can lead to female foeticide and infanticide. It can also have a negative impact on the development of girls and women, as they may be deprived of education, healthcare and other opportunities.
There are a number of factors that contribute to the low child sex ratio in Bihar. One factor is the prevalence of son preference. In many parts of Bihar, sons are seen as more valuable than daughters, as they are expected to carry on the family name and provide financial support in old age. This can lead to families aborting female foetuses or neglecting their daughters.
Another factor is the lack of education and awareness about the importance of girls. Many families in Bihar do not understand the value of girls and the negative consequences of female foeticide and infanticide.
The government has taken a number of measures to improve the child sex ratio in Bihar. These include awareness campaigns, laws against female foeticide and infanticide, and schemes to provide financial assistance to families with girl children. However, more needs to be done to address this issue.