Though still at work today ,（ ） can hardly compare with what it

Though still at work today ,（ ） can hardly compare with what it was in the past.
A、word-formation
B、​borrowing
C、derivation
D、conversion
【正确答案】：B
【题目解析】：尽管今天仍在使用，但借词几乎无法与过去（的作用）相比。