Which is an example of a primary group? A. Rashad and the student body at his high school
B. Rashad and his family
C. Rashad and the members of his religious organization
D. All of the above

Which of the following are not matched correctly? cd8+: directly destroy infected or cancerous cells t reg cell: reduce the adaptive response once threat passes t l: activate cellular branch (cytotoxic t cells, macrophages, nk cells) t 2: stimulate b cells to make antibodies t (cd4+): mhc i