Which of the following developments is an example of cultural diffusion?
a. confucianism developed in china around 500 b. c.

b. legalism demanded strict penalties for minor offenses.

c. buddhism, which originated in india, was brought to china around the 1st century a. d.

d. the chinese developed a form of picture-writing rather than a true alphabet.

C is the correct option.

Explanation:

It can be defined as the spread of the cultural beliefs and the social activities from one group of people to another. People become culturally rich through cultural diffusion. Due to advanced communication the mixing of different religions, nationalities the cultural diffusion has increased. People living around the world can communicate with other people and they become more aware of the culture of people from different regions. It helps people to open up their minds and learn as much as they can from other cultures.

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

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