Why health care professionals are often challenged by cultural differences?（为什么公共卫生专业人员经常受到文化差异的挑战？）
A: Because people from different cultures have different values.（因为不同文化背景的人有不同的价值观）
B: Because people from different cultures have different habits.（因为不同文化背景的人有不同的习惯）
C: Because people from different cultures have different health-related ideas.（因为不同文化背景的人对健康有不同的看法）
D: Because people from different cultures have different language systems.（因为来自不同文化的人有不同的语言系统）