The supreme court has ruled that a citizen of the united states cannot be convicted using evidence that was obtained illegally. which amendment did the court use to reach this decision?
a.) the 9th amendmentb.) the 4th amendmentc.) the 19th amendmentd.) the 14th amendment

b.) the 4th amendment

Explanation:

The 4th Amendment (Amendment IV) of the United States Constitution prohibits unreasonable searches and seizures. To be convicted is to be declared guilty of a criminal offence by the verdict of a jury or the decision of a judge. When an individual is convicted using evidence that was obtained illegally, then the rule of the 4th Amendment have been violated.

Other Amendments are not applicable to the question because they take part in other role itemized below:

The 9th Amendment (Amendment IX) of the United States Constitution aim at addressing the rights, not abolished or  altered by the people, that are not specifically enumerated in the Constitution.  It emphasizes on the fact that all the rights not enumerated in the Constitution belong to the people, not the government.

The 19th Amendment (Amendment XIX) to the United States Constitution forbids the states and the federal government from refuting the right to vote to citizens of the United States on the basis of sex.

The 14th Amendment (Amendment XIV) to the United States Constitution permitted all citizenship, both persons born or naturalized in the United States equal protection of the laws.

answer; (true);

no one should discriminated against because he or she is not from a minority group