问题如下图：
选项：
A. 
B. 
C. 
解释：
这题整体的含义不太清楚，想请翻译一下。并且这题的知识点出自哪里？谢谢~
NO.PZ2016010802000093 问题如下 In calculating personincome for a given year, whiof the following woulnot subtractefrom nationincome? A.Inrebusiness taxes. B.Unstributecorporate profits. C.Unincorporatebusiness net income. is correct.Unincorporatebusiness net income is also known proprietor’s income anis incluin personincome考点Personincome依据Personincome的公式，只有C的不应当被扣减，AB两项则应当被扣减。Personincome = nationincome – inrebusiness t– corporate income t– unstributecorporate profit + transfer payment. 基础课讲了， 没有听的特别明白。 可以再一下吗，什么是 transfer payment， 为什么算nationincome 时候要减去。
NO.PZ2016010802000093 答案给出的是 Personincome = nationincome – inrebusiness t– corporate income t– unstributecorporate profit + transfer payment. 在ppt里，我找到的是第138页 personincome - persontaxes 没有找到具体taxes对应的内容。
NO.PZ2016010802000093 Unstributecorporate profits. Unincorporatebusiness net income. C is correct. Unincorporatebusiness net income is also known proprietor’s income anis incluin personincome 考点Personincome 依据Personincome的公式，只有C的不应当被扣减，AB两项则应当被扣减。 Personincome = nationincome – inrebusiness t– corporate income t– unstributecorporate profit + transfer payment.如题。。。。。。。。。
题目错了哦，应该是woulnot subtracteto
请问老师unincorporatebusiness net income是什么收入？如何理解？
