The difference that distinguishes push$-$based model from pull$-$based models is summarized by which of the following slogans?

A$.$ Push what we make, not pull what we make.

B$.$ Pull what we make, not push what we sell.

C$.$ Make what we push, not push what we sell,

D$.$ Sell what we make, not make what we sell.

E$.$ Make what we sell, not sell what we make,