In which of the following situations is the Central Limit Theorem NOT applicable?

In which of the following situations is the Central Limit Theorem NOT applicable?

Select one:

a. When the sample is small and the population is normal

b. When the sample is small, below 30 and the population is not normal

c. When the sample is large and the population is normal

d. When the sample is large, above 30 and the population is not normal

e. None of the others