Consider the phrase, "the exception proves the rule." how does this phrase reflect prejudicial attitudes in the face of evidence contrary to one's attitude?

The 6th amendment's guarantee of a speedy and public trial is aimed at a. deterring potential criminals by fear of swift and certain punishment. b. trying those accused of crimes without undue delay and avoiding secret trials. c. eliminating overcrowded dockets in the nation's criminal courts. d. preventing jurors from being unduly influenced by public opinion.

Idont know any of these can anyone me

Quantitive data can be measured quantitatively