NO.PZ202109080300000103
问题如下：
The most appropriate response to Payne’s tax-related question is:
选项：
A. on all income earned worldwide.
B. only on income earned where Payne is a citizen.
C. only on income earned where Payne is a resident.
解释：
A is correct. If Payne becomes a resident of Singapore but maintains her US citizenship, any income she receives worldwide will be subject to US tax, because the United States is one of the few countries that taxes citizens on a worldwide basis, regardless of residence.
这是哪个知识点或者题干哪里说的？
