Which of the following hypothetical situations best exemplifies the potential problem noted in the second sentence of the second paragraph (highlight text)?

The passage's description of the issue raised by unconditional guarantees for health care or legal services most clearly implies that which of the following is true?

Which of the following is cited in the passage as a goal of some professional service firms in offering unconditional guarantees of satisfaction?

All of the following are mentioned in the passage as circumstances in which professional service firms can benefit from offering an unconditional guarantee EXCEPT：

The primary function of the passage as a whole is to

It can be inferred from the passage that a characteristic of the ethnological research on Native Americans conducted during the nineteenth century was the use of which of the following?

The primary purpose of the passage as a whole is to

Information in the passage suggests that which of the following may be a possible way to eliminate bias in the editing of life stories?

According to the passage, collecting life stories can be a useful methodology because

Which of the following is most similar to the actions of nineteenth-century ethnologists in their editing of the life stories of Native Americans?