With no explanation, chose the best option from "A", "B", "C" or "D". sentence. Id. at 616-618. Likewise, in a recent unpublished case nearly identical to the present one, United States v. Gonzalez-Borjas, 125 Fed.Appx. 556, 557 (5th Cir.2005) (per curiam) (unpublished), this court found that the district court had committed plain error when it imposed a sixteen-level enhancement for committing a “drug trafficking offense.” In Gonzalez-Borjas, the district court adopted the PSR’s characterization of the defendant’s sentence as a “drug trafficking offense.” This court reversed the defendant’s sentence, holding that the district court had committed plain error when finding that the defendant had committed a “drug trafficking offense.” Gonzalez-Borjas, 125 Fed.Appx. at 557-58; see also United States v. Martinez-Cortez, 988 F.2d 1408, 1451-17 (5th Cir.1993) (<HOLDING>); Navidad-Marcos, 367 F.3d at 907-09 (holding

A: holding that district courts factual findings for purposes of obstruction enhancement are reviewed for clear error
B: holding that defendants sixth amendment right to trial by a jury was not violated by district courts reliance on his prior convictions for purposes of sentencing under the armed career criminal act
C: holding that defendants sixth amendment right to trial by a jury was not violated by district courts reliance on his prior convictions for purposes of sentencing as career offender
D: holding that the district courts reliance on the psr to characterize the defendants prior offense for enhancement purposes was error
D.