The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
The approach of the evolution of management thought attempted to explain the real issues facing managers and provide managers with tools to solve future problems is the quantitative approach to management.
This is correct because this management approach uses techniques that have quantitative advantages in the tools it uses. For instance, it includes numbers, statistics, mathematics models, and even some simulations for computer software that have helped managers and companies to make better decisions based on facts, numbers, probabilities, and forecasts, not only qualitative approaches.
In the corporate world, numbers can be trusted. That is why managers have to be constantly monitoring numbers in different ways to make forecasts and make the best decisions possible in an uncertain business world that faces many variants.