Which statement best differentiates case fatality rate from mortality rate?

• A. CFR is deaths among diagnosed cases / total diagnosed cases; mortality rate is deaths in the population per unit time.
• B. CFR is population deaths per year; mortality rate is deaths among diagnosed cases.
• C. CFR is case fatality rate for the general population; mortality rate is a case fatality rate per time.
• D. CFR is deaths in the population per unit time; mortality rate is deaths among diagnosed cases.

Answer: (A)