Answer:
Culture
Explanation:
This is totally about culture. In different societies and cultures, people give meaning to things. In this culture, they give meaning to eating rice to a staple diet and eating potato as poorness. In the "health" or "fitness" sector they might argue that eating rice is best for a staple diet so which is influencing people to eat rice. Also, if the potato is cheap then people with low salaries only can eat a potato that's why this might be the reason for these associations created as a cultural issue. However, these same items might be different for another culture or society as potato is a food that can only eatable by rich people.
