The role infrastructure plays in a country's development is:

Correct answer: (d) All of the above

Explanation

Infrastructure helps development in all three ways given:

• Reducing inequality: roads, power, schools and clinics bring services and markets to poor and remote areas;
• Sustainable growth and innovation: reliable energy, digital networks and modern transport raise productivity and open the way to new industries;
• Global competitiveness: efficient ports, roads and communications lower costs, so a country's goods and services can compete abroad.

Spending on infrastructure also has a strong multiplier effect on output and jobs.