ultimately和eventually的区别 求大佬解答

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87.In  his  report  to  the  board,  Swann  reaches  the  same  conclusions  as Hussmann, arguing that the company's APPN to problems of productivity should henceforth be based on the policy of antientropic adaptability, which eventually showed so successful in the parent company's restructuring.

A.should henceforth be based on the policy of antientropic adaptability, which eventually showed

?
B.ought  henceforth  to  base  its  policy  on  antientropic  adaptability,  which ultimately proved

C.needs to be henceforth based on the policy of antientropic adaptability, which was ultimately demonstrated

D.should henceforth be based on the policy of antientropic adaptability, which ultimately proved
oa：D 不太明白D和A