Genius is a plicated concept , many different factors.
A. involved
B. involving
C. to involve
D. being involved
网友回答
A. involved
(答案→)B. involving
C. to involve
D. being involved
解析：句意：天才是一个复杂的概念，涉及很多因素。此处相当于一个非限制性定语从句which involves many different factors.将其改成短语的形式就是现在分词短语involving many different factors.