______ in the labor market, he has enrolled in a computer course

______ in the labor market, he has enrolled in a computer course.
A、Be competitive
B、Being more competitive
C、Being competitive
D、To be more competitive
【正确答案】：D
【题目解析】：动词不定式做目的状语，意为”为了......“。句意：为了在劳动力市场上更有竞争力，他报名参加了一个计算机课程。