Answer:
Correct answer is C. specialization.
Step-by-step explanation:
Option A is not correct as education is a broad category, but it is not always connected with labor.
B is not correct as it is more of a way of thinking to preserve nature.
C is correct as surplus means that you have more product than you need, nothing else.
D is correct as specialization led to redistribution of labor. People were engaged in different things and thus provided their incomes.