The best answer here is : Fascism.
Especially devotion to a single ruler is not a characteristics found in the other systems, as they're more focused on "the people" rather than on a strong ruler.
Socialism is an economical system based on a controlled market, liberalism calls for little control of the state and ethnocentrism is the focus on one's own ethnicity.
D because it allows you to invest more money into things
This is true because every civilization that was big and started out very early in the history of mankind needed to have a water source where they could use irrigation or just the water from a river in order to be able to grow crops and supply the demand for food in their area.
Answer: Expertise
Explanation: Expertise is a specialised skill or knowledge of a learned person in a particular field of study.
It is used to describe a skill in a specialised field of study. Expert skill can be in any filed of study such as Engineering, Programming, Medical field etc.
it is used to describe an expert in a particular field of study. and it is used to describe a knowledgeable person and a amateur in any field of study.
The one who camped out for the tickets.