All of the items you listed are signs that you might be approaching a collision scene.
Answer:
Tien´s behavior is consistent with a defensive/weak style.
Explanation:
The answer is: D.Its fertility rate
In citizens' demographic, fertility rate refers to the additional citizens added to a certain country population that come from conception.
We generally use that data to predict whether the country would posses enough citizens in productive age (21-55) in the near future. (without enough citizens in productive age, the country would most likely experience economic stagnation)
This is an example of following a federal regulation.
Since the new standard, or regulation, has changed, the company also had to change the way it produces a certain product - in this case, frozen food. It has to follow this regulation or else there may be financial or legal consequences.