【正确答案】 B

【答案解析】The concluding paragraph distinguishes Frankenstein from the other overreachers in his desire not to extend his own life but to impart life to another (by creating his monster). Thus, his purpose is atypical of the traditional overreacher.
To say that someone parts from the traditional figure of the overreacher is to say that he differs from it. Thus, to answer this question quickly, scan the passage looking for overreacher and different (or their synonyms).