The real economic growth and development are evaluated by the changes in total value which people place on their income and doing the things they enjoy. The real sources of growth would not comprise: (1) The profits in consumption which are made accessible via international trade. (2) Technological advances which raise the productivity of capital and labor. (3) Additional investment which is funded by greater saving rate from house-hold income. (4) More equality in the distribution of income as middle group grows relative to the population.
Can someone please help me in finding out the accurate answer from the above options.