Consider an economy with a cobb-douglas type or production function with two inputs capital and labour. the share of capital and labour in total output are, res

Consider an economy with a Cobb-Douglas type of production function with two inputs capital and labour. The share of capital and labour in total output are, respectively 1/4 and 3/4. The rates of growth of capital and labour are, respectively 8% and 4% per annum. Neutral technical progress takes place at the rate of 3% per annum. What will be the rate of growth of output per annum in this economy? (a) 5% (b) 7% (c) 9% (d) 8%