Answer:
A. Focal concerns theory
Step-by-step explanation:
Focal concern theory is a theory that is used to explain why people in lower class society is placed in the situation.
Standards of blameworthiness is a common term in this theory. This standard represents the things that often being blamed for the situation that forced people to be in lower status.
Such as They are not smart enough, they have bad luck and nothing they can do about it, they are not though enough, etc.