Answer:
both macro level & global level
Step-by-step explanation:
A public relations is considered to be operating under macro level if it can influence wide variety of living aspects of the citizens. (Economy , health, safety, etc). It will be considered to be operating of global level if it can influence the condition of other countries.
National public diplomacy can be done with representatives from other countries and could be made to address almost all things related to societal condition.