The correct answer is A. Mahalanovis model.
The Mahalanobis model was a development planning model developed by Indian economist P. C. Mahalanobis. It was used to formulate the First Five Year Plan of India. The model was based on the idea that economic development could be achieved by increasing the rate of investment in heavy industry. The model also emphasized the need for self-reliance in the Indian economy.
The Feldman model is a development planning model developed by Soviet economist G. A. Feldman. It was based on the idea that economic development could be achieved by increasing the rate of investment in capital goods. The model also emphasized the need for balanced growth in the economy.
The Harrod-Domar model is a development
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