Analysing the statements: I. A research center intends to test the effectiveness of a new vaccine. II. Professionals from a Basic Health Unit (UBS)...

Analysing the statements: I. A research center intends to test the effectiveness of a new vaccine. II. Professionals from a Basic Health Unit (UBS) want to know what are the main diseases related to the care provided by this health service. III. A Family Health Team (ESF) wants to know the number of patients with chronic diseases in the neighborhood served. IV. A research group wants to know if a new medication is more effective than the standard medication used. Regarding the use of epidemiology, it is correct to say that:

I. A research center intends to test the effectiveness of a new vaccine.
II. Professionals from a Basic Health Unit (UBS) want to know what are the main diseases related to the care provided by this health service.
III. A Family Health Team (ESF) wants to know the number of patients with chronic diseases in the neighborhood served.
IV. A research group wants to know if a new medication is more effective than the standard medication used.
a. I and III
b. III and IV
c. I, II, III and IV
d. None of the above