However  superficially appealing such an idea might appear, it was irrational and reckless.

A. possibly

B. seemingly

C. apparently

D. practically

【答案解析】本题正确选项B。【译文】无论这种想法表面上有多吸引人，它都是不理性且鲁莽的。【解析】在四个备选项中，possibly“可能地”；seemingly“表面上，似乎”；apparently“显然”；practically“几乎；实际地”。题中划线词superficially“表面地”，选项中只有seemingly意思接近，因此，依据题意在选项中最符合题意的选项是B。