She was the victim of（）（中伤） by jealous colleagues.It’s never easy to gain a foothold in the fierce competitionin the workplace.

She was the victim of（）（中伤） by jealous colleagues.It’s never easy to gain a foothold in the fierce competitionin the workplace.
A.backstabber
B.backstab
C.backstabbing
D.stab back
正确答案：backstabbing