autocracy
Another word that means ruled by one person is "autocracy." In an autocracy, a single individual holds absolute power and authority over the state, making decisions without significant input from others. This form of governance contrasts with democratic systems, where power is distributed among the populace.
Individual- άτομοruled by- αποκλειστεί από
autocracy
Without seeing all of the choices given, it is impossible to say for certain. However, knowing Greek roots and Latin roots, it is likely that the word in question is either "monarchy," or "empire."
Patriarchy
According to dictionary.com, there does not appear to be a single word that means "by default".
Member
The word 'individual' is both an adjective and a noun.The noun 'individual' is a word for a single human being; a word for a single member of a class, species, or group; a word for a person or a thing.A related noun form is individuality.
If you men single as in not married, then the word would be virgin
Focus
Autonomy.
The word plutocracy means a government or society ruled by the rich.