Hope it will helps uh.....
Answer: frame of reference.
A frame of reference is a varied set of assumptions and attitudes which a person uses to filter his perceptions to create meaning. It may his beliefs, preferences, values, culture and other ways. Because every person has a unique frame of reference the meaning of a message can never be exactly the same to a listener as to a speaker.
It dried it up due to irrigation
Answer: I would find ways to gain confidence in the subjects i struggle in.
I think the answer is B because it says it in the passage on PLATO