Which of the following characteristics is not used by the u. s. government to determine the tax treatment accorded foreign-related transactions?
a) the taxpayer's country of citizenship
b) the taxpayer's country of residence
c) the taxpayer's type of business
d) the type of income earned

C) the taxpayer's type of business

Explanation:

When we talk about taxation of income, then the US Government has this basis in which the citizenship, the marital status and whether the citizen is resident, the nature of income earned, it all matters.

US federal tax is determined based on various factors, but is not determined on the status of the type of business, as whether it is from retail or from manufacturing unit, it is not the concern of federal system.

The tax system is based to tax the income whatever is the source, although there are certain exceptions.

it should be

answer; customers within the organization