Choose the alternative which can be substituted for the given sentence.
Government by one person
The question asks us to identify the term that describes a government led by a single person. This type of government has a specific name, which can be deduced by understanding the definitions of the given options:
From the explanations, it is clear that "Autocracy" is the correct answer as it aligns perfectly with the definition of a government led by a single individual with absolute power.