The correct answer is: B. 2004-05
Rashtriya Krishi Vikas Yojana (RKVY) was implemented in 2004-05. It is a centrally sponsored scheme that aims to promote sustainable and rapid agricultural development in the country. The scheme provides financial assistance to states and union territories for a variety of activities, including irrigation, watershed development, crop diversification, and agricultural research and extension.
Option A is incorrect because the RKVY was implemented in 2004-05, not 2011-12.
Option C is incorrect because the RKVY was implemented in 2004-05, not 2007-08.
Option D is incorrect because the RKVY was implemented in 2004-05, not 2005-06.