Which of the following best explains the cause of civilizations being able to develop a division of labor?

a is correct

hope this let me know if it is right

the dominoes began to fall. the surrender at appomattox took place a week later on april 9. while it was the most significant surrender to take place during the civil war, gen. robert e. lee, the confederacy's most respected commander, surrendered only his army of northern virginia to union gen. ulysses s. grant

explanation:

because he created electricity