Answer :
The book "Wealth of Nations" is written by Adam Smith and first published in 1776. The sentence that best define the "invisible hand" include "a guide that ensures that people produce the things that society needs."
What is meaning of the term "invisible hand" in this story?
"Invisible hand" generally defined as the social and economical benefits that would arises from the self-interest acts of dwellers.
Smith addresses to the manufactures of the goods through this book that people need to produce those goods that easily met the demand of particular individual. Government should not interrupted between the demand and offer of goods and services.
Therefore, correct option is A.
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