根据《环境影响评价技术导则-总纲》，环境影响评价方法的选取应采用（）。

A.定量评价为主

B.定性评价为主

C.定量评价与定性评价相结合的方法，以量化评价为主

D.定量评价与定性评价相结合的方法，以定性评价为主

— How do the shops make money if they sell at such low prices?

— Manufacturers, it seems, are willing to bring down prices ________ big volume purchases.[ ]

A. under the name of   

B. on behalf of

C. in return for   

D. in preparation for