Which of the Following Is True of Theater Testing

Which of the following is true of theater testing?

A) Theater testing is a popular field method of pretesting finished commercials.
B) Theater testing is used to test animatic and photomatic roughs.
C) The methods of theater testing operations vary, though all measure brand preference changes.
D) One of the disadvantages of theater testing is that it fails to identify strong or weak commercials.
E) Theater testing is typically considered to be "self-indulgence" by most critics.