With no explanation, chose the best option from "A", "B", "C" or "D". Trying an incompetent defendant deprives him of his due process rights to a fair trial under both the Federal and Vermont Constitutions. Pate v. Robinson, 383 U.S. 375, 385 (1966); State v. Beaudoin, 2008 VT 133, ¶ 8, 185 Vt. 164, 970 A.2d 39; see also 13 V.S.A. § 4817(a) (“A person shall not be tried for a criminal offense if he or she is incompetent to stand trial.”). The procedure described in 13 V.S.A. § 4817 gives the trial court some latitude in determining whether or not to hold a competency hearing. See Merchant, 173 Vt. at 254, 790 A.2d at 391 (“The trial court has a duty to . . . conduct a competency hearing [under §4817] only where the court has reason to believe that such person may be incompetent.”); State v. O’Connell, 149 Vt. 114, 116-17, 540 A.2d 1030, 1031-32 (1987) (<HOLDING>). That said, the “keystone is the court’s

A: holding that the state does not have to prove a defendants competency to stand trial
B: holding that competency hearing not required when judge alone raises issue of competency
C: holding that competency standard for stand ing trial is same as standard for determining competency to waive right to counsel
D: holding that no hearing was required where there were written reports supporting defendants competency
B.