Which of the following statements are correct?
A、Business-to-business products include products that organisations use in the production of other products.
B、Business-to-business products include products that organisations use in their daily operations.
C、Once a product has reached the maturity phase of the product life cycle, it is not possible to move back to the growth stage.
D、Promotional activities to build awareness of a product are most likely to be necessary in the introduction phase of the product life cycle.