Final Answer:
The tax base is d. the amount (quantity) of the good or activity that is being taxed.
Step-by-step explanation:
The tax base refers to the actual quantity or amount of a good or activity that is subject to taxation. It forms the foundation upon which the tax rate is applied, determining the total tax liability.
For instance, in the case of a sales tax on a particular product, the tax base would be the number of units sold or the total value of those goods. Understanding the tax base is crucial as it directly influences the revenue generated by a tax and helps in assessing the impact of taxation on different goods or activities.
It serves as the starting point for calculating the tax owed, providing a clear measure for determining the tax burden on individuals or entities engaging in the taxed activity or possessing the taxed goods. By defining what is being taxed, policymakers can design and implement effective tax policies.