Which is the best indication of a more developed society

A 'developed' society has a number of key characteristics which are either not present in a developing society or are still in their infancy. These include:

Free and Fair elections and a strong democratic processFreedom of Speech and a fair and open media Equal human rights for all citizens regardless of their faith, gender, caster or creedA sophisticated education system that provides basic education for all citizensA post-agrarian society where urbanization has taken place and most people do not rely on primary agriculture for a livingA middle or high income society where the basic needs of food, shelter, clothing and security are available to most citizens.

Ithink it’s c , good luck on whatever : )

He gathered information from primary sources.