问题详情

According to the passage, humans mechanism of forgetting is under threat in the digital age because______.

A．the mechanism of forgetting is no longer with us in this age

B．dealing with Facebook messages, e-mails, tweets, etc. keeps us occupied

C．advanced digital tools help us decide what to forget

D．a comprehensive digital memory constantly reminds us of the past

请帮忙给出正确答案和分析，谢谢！