Which is best practice for a successful TrueView in-stream ad?

Q)  Which is best practice for a successful TrueView in-stream ad?


  A)  All of the listed answers are correct.

  B)  Add a frequency cap.

  C)  Include a strong call to action so the viewer knows what to do

  D)  Use at least three different types of targeting methods to optimize the one that performs best.