You know the RR estimate from a sample will be an overestimate of the true RR if your risk estimates are (pick all that apply)

Select one or more:

a. Too high in the exposed and too low in the unexposed

b. Too high in the exposed but correct in the unexposed

c. Too low in the exposed and too high in the unexposed

d. Too high in both the exposed and in the unexposed

e. Correct in the exposed but too low in the unexposed