What is said about the lean and green model of business?
A.
It helps businesses to save and gain at the same time.
B.
It is affordable only for a few leading-edge companies.
C.
It is likely to start a new round of intense competition.
D.
It will take a long time for all companies to embrace it.
H.
位】由题干中的the lean and green model定位到第五段最后一句。