Which of the following is the authority vested in a particular court to hear and decide the issues in a particular case?

Animal rights groups focus on the notion that animals have the same rights as humans and should not be used in research. Animal researchers are concerned with animal welfare, which focuses on

a. providing animals with the minimum necessities to support life. b. designing experiments so as to yield the clearest possible results. c. improving laboratory conditions for research animals and reducing the number of animals needed in research. d. replacing animals with computer models and dummies.

Individual opinions sometimes may be badly informed and unstable, ______.

A. but aggregate public opinion is both stable and coherent B. and aggregate public opinion is uninformed and unstable C. although only informed and stable individual opinions are considered for the purposes of aggregate public opinion D. but when combined into aggregate public opinion, individual opinions are informed-though still unstable