The option that falls outside of the classification of business expenditures that fall into the category of variable costs is option C. costs of research and development. Read below about costs of research and development.
<h3>What is a costs of research and development?</h3>
These are costs taken to develop new products or processes that may or may not result in commercially viable items. The general rule is that research and development costs are to be expensed immediately when the costs are incurred.
Therefore, the correct answer is as given above.
learn more about costs of research and development: brainly.com/question/18685415
#SPJ1
D. <span>Regressive tax. The tax
rate decreases as the taxable income increases. There is an inverse relationship
between the tax rate and the tax base (taxable income). Regressive tax imposes
a greater burden on the poor. This is favorable to the rich or those who are
huge income earners.</span>
