According to the passage, the main disadvantage of person-on-the-street interviews is that they A. are not based on a representative sampling B. are not carefully worded C. are used only on t

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According to the passage, the main disadvantage of person-on-the-street interviews is that they

are not based on a representative sampling

are not carefully worded

are used only on television

reflect political opinions

Giải thích

Thông tin: … they are not necessarily an accurate indication of public opinion (các cuộc phòng vấn không nhất thiêt là sự biểu thị chính xác về quan diem quần chúng)