Which of the Following Is NOT One of the PACT

Multiple Choice

Which of the following is NOT one of the PACT principles regarding advertising copy testing? 

A)  A good copy testing system is one that requires agreement about how the results will be used in advance of each specific test. 
B)  A good copy testing system provides multiple measurements. 
C)  A good copy testing system is based on a model of sales or market share. 
D)  A good copy testing system should test alternative executions in the same degree of finish. 
E)  A good copy testing system is one that can demonstrate reliability and validity.