I did a little research on History.com and came up with this,
The First Amendment text reads: “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.”
Since there is nothing indicating right to due process, trial by jury, or right to bear arms, your answer would be D. Right to assemble