In Regards to Cultural Competence, What Is a Good Strategy

In regards to cultural competence, what is a good strategy to facilitate cultural learning?

A) It is sufficient to rely on media to form assumptions about other cultures.
B) It is OK to spend time only with the frail and disabled of the culture to form opinions about the culture.
C) Once information is acquired you must remain vigilant.
D) Some groups are superior to other groups.