Which of the following is an example of a social barrier to cultural diffusion?
exposure to new cultures, traditions, and ideas
an increase in global migration trends
laws that prohibit western-style clothing
social media and wireless communication

laws that prohibit western-style clothing  

Explanation:

In cultural anthropology, cross-cultural diffusion is a concept introduced by Leo Frobenius in his work Der westafrikanische Kulturkreis (1897/98), which refers to the expansion of the use of objects, ideas, styles, religions, technology, languages, etc. between people of different cultures. It is a different process from the diffusion of innovations within a specific culture, since cross-cultural dissemination always involves more than one culture. The phenomenon can occur by voluntary adoption, by imitation, or by cultural imposition.

the qing dynasty placed strict limits on foreign merchants' ability to trade in china.

because people what other people gold

explanation: