Which of the Following Is True of the Production Stage

Which of the following is true of the production stage of television advertising process?

A) It can include some final preparations such as lighting checks and rehearsals.
B) It involves creating the shot-by-shot sketch depicting the visual scenes that will be used in an advertisement.
C) It is that stage at which the advertiser estimates the cost of the shoot and required paraphernalia.
D) It mostly involves the assessment of directors and music suppliers to be chosen for the shooting.