This is so hard i've been on it for an hour.

The correct option is letter D: amendments to the Constitution that guarantee certain rights.

This is so, because the Bill of Rights is the first 10 amendments to the Constitution that were written by James Madison. Some of the rights being guaranteed in the Bill of Rights are:

Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances. (Amendment I)A well-regulated militia, being necessary to the security of a free state, the right of the people to keep and bear arms, shall not be infringed.(Amendment II)The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no warrants shall issue, but upon probable cause, supported by oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized. (Amendment IV)In all criminal prosecutions, the accused shall enjoy the right to a speedy and public trial, by an impartial jury of the state and district wherein the crime shall have been committed, which district shall have been previously ascertained by law, and to be informed of the nature and cause of the accusation; to be confronted with the witnesses against him; to have compulsory process for obtaining witnesses in his favor, and to have the assistance of counsel for his defense. (Amendment VI)