Which of the following intergovernmental organizations is responsible for promoting safe workplace conditions and decent wages?
a. the asian development bank
b. the world trade organization
c. the north atlantic treaty organization
d. the international labor organization

d. the International Labor Organization

In the modern society, division of labor is the specialization of cooperating individuals who do specific tasks and roles. Throughout history, it is said that an increasingly complex division of labor can be associated with the growth of total output and trade, the rise of capitalism and the complexity of industrialized process. In the modern times, division of labor is involved in management and organization. In a global sense, people are concerned about what division of labor would be most ideal, beautiful, efficient and just. 

It's definitely not NATO (c): it's a military organization of mutual defense.

It's also not WTO (b) : it's an organization regulating trade

The correct answer is  d. the International Labor Organization  - the main purpose of this organization is promoting worker's welfare!