For Which of the Following Transactions Would a Functional Relationship

Multiple Choice

For which of the following transactions would a functional relationship between the buyer and seller be LEAST appropriate?

A) An apartment complex owner's procurement of 80 gallons of paint for the once every three year repainting of all buildings in the complex.
B) A dentist's purchase of dentures, plates, and other mouth apparatus from a dental lab where they are made.
C) A commuter's purchase of a daily newspaper to read on his ride to work.
D) A job foreman's purchase of lubricating oil for an assembly line.
E) An interior decorator's purchase of a cellular phone.