If marginal rate of substitution $$\left( {\frac{{\vartriangle {{\text{y}}_1}}}{{\vartriangle {{\text{y}}_2}}}{\text{or}}\frac{{\vartriangle {{\text{y}}_2}}}{{\vartriangle {{\text{y}}_1}}}} \right)$$   is equal to zero, then enterprise relation is said to be

A. Cost of cultivation B. Cost of production C. Cost of farming D. Fixed cost

A. 193.10 lakh hectares B. 183.49 lakh hectares C. 193.20 lakh hectares D. 194.33 lakh hectares

A. Economic holding B. Basic holding C. Optimum holding D. None of the above

A. Current assets B. Fixed assets C. Working assets D. None of these