The Supreme Court case of Carey v. Musladin involved a murder case in which the family of the victims wore buttons with images of the victim to the trial. What Sixth Amendment protection was in question in Carey v. Musladin?

a. right to be cross-examine the individuals wearing buttons
b. right to be public trial
c. right to be impartial jury
d. right to be informed of changes

c. right to be impartial jury