Charlotte wrote a book about her experience as an anthropologist living in an Incan village for three years and becoming an expert weaver. Her book was widely read by other anthropologists, including Mira, who is an expert in Navaho weaving. For Mira, Charlotte's book constitutes:

The correct answer is letter "B": secondary data.

Explanation:

Secondary data represents all sources of information an individual can collect data from that do not represent information that person is gathering from the audience directly. Secondary data serves as support information for a study but, as its name says, it is the second option to be considered in research.  

Censuses, internet researches, books, and newspaper articles can be considered sources of secondary data.

the correct answer is economics is a game without winners or losers.

unlike sports or games economic is a game without losers or winner rather it is a game where everyone wins. parties of business doing businesses exchange money with each other and hence exchange is done on the basis of goods. one party takes the goods and other sales it so there is winner on both sides. each party values more highly the good it gets than the good it gives up. both sides exchange only because both intend to increase their value. so there is no concept of lose or win.