A supermarket chain wants to quickly inform loyal customers who are close to one of the chain's locations of short-term price cuts. Which of the following would be the most effective media vehicle for the chain?

If it appears that a crime has been committed, the prosecutor is required to conduct an

investigation and may not selectively investigate or prosecute suspected criminals. a. True b. False

Which type of primary research requires no direct involvement with human subjects?

a. Observational studies b. Experimental research c. Normative surveys d. Longitudinal research