A study was performed with a random sample of 5 people from a certain city. What population would be appropriate for generalizing conclusions from the study, assuming the data collection methods used did not introduce biases?

a. The conclusions should be restricted to only the city that was sampled.
b. The conclusions are generalizable to all people on Earth.
c. The conclusions are generalizable to all people in the country.
d. The conclusions apply only to the sample.
e. The conclusions apply to people in any city