The 12 member countries became known as the European Union when the ________ was signed in 1993

________________ was not mentioned in our textbook as major innovation in transportation technology

Fill in the blank(s) with the appropriate word(s).

Which of the following activities is not fieldwork?

A) a worker mailing questionnaires from an office B) an observer counting customers in a particular section of a store C) a statistician analyzing the results of a survey D) a telephone interviewer calling from a central location