Which of these is not something supervisors need to do in order to be an effective communicator?

Which of these is not something supervisors need to do in order to be an effective communicator?
 A) understand their audience
  B) be clear about the message they wish to convey
  C) have a pleasant speaking voice
  D) seek feedback

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Question 2 - The consumer price index (CPI)
 A) is a quarterly index that producers receive for their finished goods.
  B) measures increases or decreases in the level of worker performance.
  C) is the price of metals, lumber, and raw materials.
  D) measures prices paid during periods of deflation.
  E) is a monthly index that tracks the prices paid by consumers.

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Question 3 - Consumer products can be divided into the following three categories:
 A) convenience, shopping, and business.
  B) shopping, convenience, and specialty.
  C) convenience, component, and accessory.
  D) shopping, component, and specialty.
  E) business, specialty, and shopping.

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Question 4 - Top managers probably make up the largest group of managers in most organizations.
 
 Indicate whether the statement is true or false