If Sally McMedia wants to design a questionnaire about consumers' movie and TV preferences to help in her company's market research, which of the following should she do?

A. Ask exactly how many different movies they have watched in the last two years. B. Ask respondents how much they like and are satisfied by the current films in the theatre in one question. C. Put the questions about TV shows with sex and violence at the beginning, because they are the most sensitive. D. Start the questionnaire with demographics such as age and gender. E. None of the above