Answer:
Socio-economic bias/stereotype/ prejudice.
Explanation:
Any form of bias is an act of prejudice or judgment that a person has against another based on that person's sex, race, social condition, religion, background, etc. Such acts of discrimination are all forms of bias.
In the given scenario, the belief that those who earn less are not hardworking is a bias based on one's socio-economic status/ condition. Such type of bias is when one assumes another person's quality based on their social status or condition.
Thus, the correct answer is socio-economic bias/ prejudice/ stereotype.
