The correct answer is; Epidemiology study.
Further Explanation:
This type of study is used when there is a large population of people or animals who have developed a certain type of disease. The people who study this are called Epidemiologists.
An Epidemiologist determines what can be done to protect people so that they will not get the disease. They also study the factors of what is associated with the disease itself. The main types of study are;
- Risk factors
- Protective factors
- Cohort
- Case-control
- Cross-sectional studies
The areas of study are;
- Transmission
- Disease surveillance
- Disease causation
- Outbreak investigation
- Environmental epidemiology
- Forensic epidemiology
- Occupational epidemiology
- Screening
- Biomonitoring
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Answer:
B. more difficult when your close friends smoke.
Explanation:
Especially when one is younger and/or has been with your friends in a long term, it may be "more" pressuring to do things with your long-time close friend, even if it is detrimental to your health. B, is the best answer choice for this question.
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