D as there isn't a time limit
Answer:
A. Cohort study
Explanation:
It is basically a cohort study because in this we can evaluate the incident rate at a particular time for a particular disease. .
The answer is 40 hours. A minimum of 40 hours of driving experience, 6 hours of which must be at night, is required for a teen to obtain a Class D Georgia Driver's License.
Answer:
high risk because you can pass sickness and dieses around