Answer: C. Sixth Amendment guarantees that people accused of a crime can be represented by a lawyer during their trial.
Explanation: The Sixth Amendment provides several key rights to those accused of crimes, including the right to a speedy and public trial, the right to an impartial jury, the right to be informed of the charges against them, and the right to confront witnesses. The amendment also specifically guarantees the right to counsel, which means that individuals accused of crimes have the right to be represented by a lawyer during their trial.