I believe your answer would be B. prevalence.
Hope this helps,
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Answer:
c. incidence
Explanation:
Incidence: It is a psychological phenomenon that indicates the rate of new disorder included. It has been reported that new cases of a disorder occurring at a period of time, for example how many cases typhoid occurred in the august month. It is more important when the fraction occurred in population when population is at risk of developing the disease (per million population). The accuracy of incidence depends on the accuracy of diagnostic cases and reporting the disease. It can be categorized into sub-parts such as gender, racial, group, and diagnostic criteria.
