An experienced nurse explains to a newly hired nurse that understanding other cultures' worldviews ...

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The process of cultural knowledge occurs when nurses educate themselves about the worldviews of other cultures and ethnic groups. Cultural worldviews influence patients' perceptions of health care and their role and expectations. Knowing this allows the nurse to assess and then plan for care that is culturally relevant.
Culture is an important concept in health and illness, but this answer is not specific enough to be the best answer.
It is true that every culture has its own related values and attitudes, but this is not specific enough to be the best answer.
People are sometimes afraid of others who seem different to them, but this is not the best answer, because it does not explain the effect of worldviews.