Which of the followings are the possible sources of new-product ideas for a company？（）

Which of the followings are the possible sources of new-product ideas for a company？（）
A.The investigation of customer needs
B.The suggestions from suppliers
C.The new possibilities offered by technological advances
D.The analysis of rival products
正确答案：The investigation of customer needs；The suggestions from suppliers；The new possibilities offered by technological advances；The analysis of rival products