Which of the Following Statements Is True of Sales Promotions

Which of the following statements is true of sales promotions?

A) They are marketing activities that stimulate consumer purchases and improve retailer or middlemen effectiveness and cooperation.
B) They are long term efforts directed to a manufacturer or supplier.
C) They are long-term efforts directed to a manufacturer or supplier.
D) They primarily involve activities that encourage the press to cover positive stories about companies.
E) They are ineffective in markets where consumers are hard to reach.
F) They are the only element of the marketing mix that are affected by cultural differences among country markets.