The correct answer is option 'C) Rajasthan'. Rajasthan has the lowest female literacy rate among the given states in India.

Reasons for the lowest female literacy rate in Rajasthan:
1. Socio-cultural Factors: Rajasthan is a state with deeply rooted patriarchal norms and a conservative society. This often leads to a lower priority given to female education compared to male education. Traditionally, women in Rajasthan have been expected to prioritize household duties and get married at an early age, which hinders their access to education.

2. Gender Inequality: Gender discrimination is prevalent in Rajasthan, leading to limited opportunities for girls to pursue education. They often face restrictions on mobility, lack of support from families, and limited access to resources, which perpetuates the gender gap in literacy rates.

3. Poverty and Economic Factors: Rajasthan is one of the economically disadvantaged states in India. Poverty and economic constraints often force families to prioritize their limited resources towards meeting basic needs rather than investing in education. This disproportionately affects girls' education, as they are more likely to be withdrawn from schools to contribute to household income or take care of siblings.

4. Infrastructure and Access to Education: Rajasthan faces challenges in terms of inadequate infrastructure, especially in rural areas. The availability of schools, quality of education, and distance to schools are significant barriers for girls to access education. Lack of separate toilets for girls in schools also acts as a deterrent.

5. Child Marriage and Early Parenthood: Rajasthan has a high prevalence of child marriages, which often results in early parenthood for girls. Early marriages lead to discontinuation of education, limiting girls' opportunities for academic development and literacy.

It is essential to address these challenges and implement policies that promote gender equality, provide financial incentives for girls' education, improve infrastructure, and raise awareness about the importance of female education. Empowering girls through education will not only improve literacy rates but also contribute to their overall development and the progress of the state.