Answer:
a: It shows the Islamic influence on Chinese pottery making.
Step-by-step explanation:
The image explains cultural diffusion in the sense that "It shows the Islamic influence on Chinese pottery making."
This is because the ornament style of Yuan blue and white that can be observed from the images was obtained mainly from the arabesques and plant scrolls of Islamic adornment style. This unlike the red and white paintings that were originally preferred by the Chinese.