The correct answer is: A. 44.96%
As per census 2011, 44.96% of the working population in India was engaged in agricultural practices. This is a significant decrease from the 54.64% of the working population that was engaged in agriculture in 2001. The decline in the percentage of the working population engaged in agriculture is due to a number of factors, including the growth of the non-agricultural sector, the mechanization of agriculture, and the migration of people from rural to urban areas.
Option B is incorrect because it is the percentage of the working population that was engaged in agricultural practices in 2001. Option C is incorrect because it is the percentage of the working population that is expected to be engaged in agricultural practices in 2021. Option D is incorrect because it is the percentage of the working population that is engaged in non-agricultural practices.