I think your question if if they can "co-exist", correct?
They can and they have coexisted many times in the past, and even today. A monarchy with teocracy happens when there is a ruler (monarch ) who has an absolute or near-absolute power and claims to derive this power from God.
A historical example is ancient Egypt and a current example is Vatican City
By their behavior and how the react and understand to everyday life from other people.
Answer:
Option C.
Explanation:
Regulating air travel between states
, is the right answer.
The state governments invest in public buildings, water treatment systems, transportation and various other forms of essential infrastructures. The main reason for making such investment is the development of the state and to give residents quality life. Such projects generate new employment opportunities and promote full economic recovery. All three options come under the responsibilities of the state regarding infrastructure except regulating air travel between states.