—Could you tell us ______?

—About two weeks. [ ]

A. how often are we going to be away

B. how often we are going to be away

C. how long are we going to be away

D. how long we are going to be away

王某的一篇论文被编入某论文集出版，取得稿酬5000元；当年因添加印数又取得追加笔稿酬2000元。上述王某所获稿酬应缴纳的个人所得税为（）

A．728元

B．784元

C．812元

D．868元