Anthropology is a. the social science that deals with the behavior and thinking of organisms. b. the comparative study of past and present cultures. c. the social science that studies human society and social behavior. d. the observable facts or events that involve human society.

The best answer — and correct answer — from the answer choices given:

 Anthropology is:    

           [B]:  "the comparative study of past and present cultures."

NOTE:

Choice:  [A]:  "the social science that deals with the behavior and thinking of  organisms."  → is INCORRECT ; this choice refers to "psychology".

Choice:  [C]:  "the social science that studies human society and social          behavior."     → is INCORRECT ; this choice refers to "sociology".

Choice:  [D]:  "the observable facts or events that involve human society".
                      → is INCORRECT ; this choice refers to "social phenomena" .