The correct answer is - trade.
The Sumerians engaged in trade with their move of exchanging their surplus food for materials like the copper that they needed to develop their weapons and thus their army forces. This was a very smart move from their side because they managed to use the resource they had in abundance but was scarce in the other surrounding areas so that they take what they need to become stronger and pretty much defend more efficiently from the same people they were engaging in trade with.
Not c. not a, doesn’t make sense.
Either Work or Transportation
<span>Father Monserrate belongs to Portugal, who was invited by Akbar the great for his court in order to know the christian beliefs and studies. By invitation Father Monserrate (1536‒1600) visited Akbar's court accompanied with two other priests, Father Rodolfo Acquaviva and Father Francisco Enriquez, on the first Jesuit mission. The necessity of christian study was that Akbar organised a new religion called Din i lakhi , in din i lakhi, akbar, collected all good morals in all religion . In india during pre - british period there is no christianity in India. So he invites Father Monserrate and his crew to India to collect the morals in Christianity. Akbar and his nobles belongs to Din i lakhi collects all the good morals from Hinduism, Christianity, Islam, Buddhism etc,and compile the moral to add and flourished the new religion Din i lakhi. Hence from the Father Monserrate view Akbar look like a secular person.</span>
<span>C. They were ruled by antidemocratic communist governments. </span>