In which of the following years did the twelfth five year plan end?

Correct option is D

The Twelfth Five Year Plan ended in 2017.
· The Twelfth Five-Year Plan of India began in 2012.
· "Niti Aayog" replacing the Planning Commission, the Twelfth Five-Year Plan was officially concluded in 2017
India's Five-Year Plans:

•  India has followed the Five-Year Plan model for economic planning since 1951, inspired by the Soviet Union's approach to planning.
  
• The objective of these plans was to set specific goals for national economic development, addressing issues like poverty, unemployment, and industrial growth.