Which assumption makes the Naïve Bayesian classifier different from the general Bayesian model?

Which assumption makes the Naïve Bayesian classifier different from the general Bayesian model?
A . Number of features cannot be greater than the number of records
B . Features of a class are conditionally independent of one another
C . All variables need to be numeric
D . Fewer features can be used with the Naïve Bayes classifier

Answer: B