The correct answer is letter b. delusion.
Delusion refers to the false personal belief, wherein an individual believes in his or her knowledge yet does not believe others, though they are right and have sufficient evidence. Being delusional may be cause by the lack of evidence or incomplete knowledge and wrong perception of things.
Answer:
Confirmation Bias
Explanation:
Confirmation bias is a deep seated tendency to prefer information that confirms our existing positions. The human understanding when it has once adopted an opinion draws all things else to support and agree with it. And though there is a greater number and weight of instances to be found not true, he either neglects, despises or rejects in order that by this great and pernicious determination the authority of its conclusions may remain inviolate. Confirmation bias is found to be important because it may lead people to hold strongly to false beliefs or give more weight to information that supports their beliefs than is warranted by evidences. This biased approach is largely unintentional and often results in ignoring inconsistent information
This is a well known psychological tendency
Her bias is known as "the outgroup homogeneity effect".
Outgroup homogeneity is the inclination for individuals to see ingroup individuals as more differing than outgroup individuals. The Outgroup Homogeneity Effect is the propensity to see an outgroup as homogenous, or as "all the same," while the ingroup is viewed as more heterogeneous or differed.
I don't know the answer to this question.
