Rachel Is Conducting Telephone Interviews for Blockbuster on Perceptions of Its

Rachel is conducting telephone interviews for Blockbuster on perceptions of its new "No Late Fees" program.When she interviews customers of the NetFlix service,she tends to change the wording of the question,"How loyal are you to using Blockbuster for your DVD rental needs?" to "So you aren't loyal to Blockbuster,are you?" Which of the following sources of error in communication research is present in this example?

A) Measurement questions
B) Observers
C) Interviewers
D) Participants
E) All of the above