Power exercised through authority means what? A) law enforcement B) a strong national defense C) The majority of the members of a group have given permission for the leaders to have control. D) Common people may have the right to vote but they ultimately have no power.

Option C

Explanation:

In simple words, The phrase authority refers to the governmental legitimacy that confers and explains the dictator's right to use government power; the phrase power refers to the capability to achieve an authorized purpose, either through acquiescence or compliance; thus, authority is the capacity to execute choices. 

Thus, from the above we can conclude that the correct option is C.

answer; the population in brazil is very diverse there are many races and ethnic groups

i believe the answer is: description

description refers to the goal of psychologist to identify the phenomenon that being observed. this goal is being actualized by collecting data/information from various clues that observed through the phenomenon. this goal must be accomplished before pyschologist able to create methods of treatment.