HELP!! Which amendment/right best applies to the following scenario?

Kathryn, an eighteen year old college student, is arrested for stealing a classmate’s designer sweater and selling it on eBay. When Kathryn appears before the judge, she asks for a lawyer to help defend her. The judge tells Kathryn she cannot have a lawyer because if she is smart enough to be in college, she knows enough to defend herself.

A) Fourth amendment-no illegal searches or seizures
B) Fifth amendment-cannot be forced to testify against yourself
C) Sixth amendment-the right to an attorney
D) Eighth amendment-the punishment must fit the crime

Cooperation among oligopolies runs counter to the public interest because it leads to underproduction and high prices. in an effort to bring resource allocation closer to the social optimum, public officials attempt to force oligopolies to compete instead of cooperating. consider the following scenario: suppose that the presidents of two auto manufacturing companies exchange text messages in which they discuss jointly raising prices on their new lines of hybrid suvs. this illegal communication would violate which of the following laws? the sherman antitrust act of 1890 the robinson–patman act of 1936 the celler–kefauver act of 1950 the clayton act of 1914