The manager of the department had _____ his friend's advice, which led to the failure of his business. [ ]

A. concerned

B. suffered

C. ignored

D. discussed

用人单位招用劳动者，不得扣押劳动者的居民身份证和其他证件，但可以要求劳动者提供担保或者以其他名义向劳动者收取财物。( )