The correct answer is A. 1947.
The first industrial policy proposal was made in 1947 by the Economic Planning Council. The proposal called for the government to play a more active role in the economy, and to promote the development of heavy industry. The proposal was not implemented, but it laid the foundation for future industrial policies.
Option B is incorrect because the first industrial policy proposal was made in 1947, not 1948.
Option C is incorrect because the first industrial policy proposal was made in 1947, not 1949.
Option D is incorrect because the first industrial policy proposal was made in 1947, not 1950.