The Frequency of Schizophrenia Across Cultures Is

The frequency of schizophrenia across cultures is:

A) very similar, afflicting about 10 percent of adults
B) very dissimilar, afflicting between 1 percent to 10 percent of adults depending on culture
C) very similar, afflicting about 1 percent of the population
D) largely unknown since many cultures do not recognize schizophrenia symptoms as problematic