![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
Bristol Meyers failed in promoting fact toothpaste and resolve because______.
A.
these products were too expensive as compared with their direct competitors
B.
both products failed to meet the customers' needs
C.
the customers could see no sense of a radical change of their habits
D.
the company forgot an English saying:' You cannot teach an old dog new tricks.'