(I) Estimate the value of subsistence level of consumption expenditure from the following data, about an economy which is in equilibrium : (i) National Income (Y) = Rs. 1,500 crore (ii) Marginal Propensity to Consume (MPC) = 0.8 (iii) Investment Expenditure (I) = Rs. 150 crore (II) "An economy facing unplanned accumulation of inventories would try to increase its Aggregate Demand." Defend or refute the given statement with valid arguments. (I) Complete the following table : (II) Identify the monetary measure being referred to each of the following and discuss whether the tool would be used during a situation of excess demand or deficient demand. (i) Buying government securities (G-Sec) from public. (ii) Discourage commercial banks to park their surplus funds with the Reserve Bank of India (RBI).