"Unity of effort" requires coordination among government departments and agencies, as well as cooperation toward common objectives across commands.
Answer: Option C
Step-by-step explanation:
At the national level the unity of effort is basically a cooperative effort involving a number of departments and agencies of the United States Government. "Unity of effort" is about teamwork and collaboration directed towards common goals although participants do not generally form part of the same command or organisation that is the result of effective unified action.
The aim of promoting cohesion of action is to generate a ellaborative consensus approach while applying national power instruments towards common goals. The unity of effort is a continuous process which demand constant effort to sustain inter-organizational relationships.