Descriptive epidemiology involves all of the following questions except: group of answer choices who? why? what? where? when?

Descriptive epidemiology involves all of the following questions EXCEPT Why?

There are two epidemiology concepts that are descriptive and analytic. The term "distribution and  'determinants" refers to the descriptive and analytic epidemiology respectively.In the descriptive epidemiology the disease that is caused as dealt by comparing it geographically and also temporally.

The term distribution in the descriptive epidemiology involves the time which corresponds to the question "when", place that corresponds to the question "where", person that corresponds to the question"who" and "what". The questions that involves the causes,transmission modes and associated factors of risk that corresponds to the question why, how will be covered in analytic epidemiology.

what is the tax base for the sales tax?

it should be (usually ) 6%