Which of the following development strategies emphasizes that developing countries should simultaneously invest in many industries rather than concentrating on a few sectors?

The balanced growth strategy, associated with economists like Ragnar Nurkse and Arthur Lewis, advocates for simultaneous investment across many industries so that each sector creates demand for the output of other sectors, thereby breaking the vicious cycle of poverty. The unbalanced growth strategy, by contrast, advocates investing in selected leading sectors to create forward and backward linkages.