The correct answer is (c), Uttarkashi and Champawat.
As per Census of India, 2011, the population growth rate of Uttarakhand was 15.9%. However, there were two districts in the state that recorded negative population growth during 2001-2011, namely Uttarkashi and Champawat. The population of Uttarkashi declined by 1.2% during this period, while the population of Champawat declined by 0.4%.
There are a number of factors that could have contributed to the negative population growth in these two districts. One possibility is that there was a net out-migration of people from these districts. This could be due to a number of reasons, such as lack of employment opportunities, poor infrastructure, or natural disasters. Another possibility is that there was a decline in the birth rate in these districts. This could be due to a number of factors, such as the increasing use of contraception, the rising cost of raising children, or the changing social and economic status of women.
The negative population growth in Uttarkashi and Champawat is a matter of concern for the state government. The government needs to take steps to address the factors that are contributing to this decline. This could include providing more employment opportunities, improving infrastructure, and providing better healthcare and education facilities. The government also needs to promote awareness about the importance of family planning and the need to have smaller families.