Final answer:
The minimum number of jurors required in state criminal cases under the Sixth Amendment is (D) twelve.
Step-by-step explanation:
Under the Sixth Amendment, in state criminal cases, the minimum number of jurors required is twelve (d).
The Sixth Amendment provides several protections for those accused of crimes, such as the right to a speedy and public trial by an impartial jury, to be informed of the charges, to confront witnesses, and to have legal assistance for their defense.
Specifically, the requirement for a jury in criminal trials typically involves seating twelve members and one or two alternates, who are screened for impartiality to ensure the defendant's right to a fair trial.