Asignificant part of a manager's job is an orgnisation is to use the tools and techniques developed through ob research to increase organizational
a. structure
b. morale
c. complexity
d. effectiveness

A significant part of a manager's job is an organization is to use the tools and techniques developed through OB research to increase organizational effectiveness. In wikipedia, organizational effectiveness is the concept of how effective an organization is in achieving the outcomes the organization intends to produce.

Yikes. that sucks dide

Ithink its b hope it ! : )