Answer: achieved ,ascribed
Explanation: Individual groups focus on the achieved authority because they have the earned the status and value it as it is gained from the efforts and individuality.They gain the status through their voluntary aspect.
Ascribed authority is focused by the people of the collective groups because as they do not persist the control over the group .They are only only the members of that social group but do not persist the individualism.It is gained by being born in that particular group or being invoked in that group involuntarily.