求助一道填空题

creamyclamUID：3132257

绿皮填空补充练习题Exercise 4 (No.2-2 Section2 第五题)
Although Darwinism was a profoundly  ____ world view, it was essentially passive, since it prescribed no steps to be taken, no victories over nature to be celebrated, no program of triumphs of be successively gained.
A: limitedB: repressiveC: debatableD: innovativeE: paradoxical

答案是D，但我看不出Passive和Innovative的对立关系（如果没找错的话- -||）。。。是说innovative是主动的行为吗？但好像主体又不太一样，后面说的passive是对自然被动。。
糊涂了。。谁能给解释一下~太感谢啦！！！