With no explanation, chose the best option from "A", "B", "C" or "D". to the section 924(c) jury instruction, we review it for plain error. See, e.g., United States v. Webster, 84 F.3d 1056, 1066 (8th Cir.1996). Although the pre-Bailey instruction was given to the jury (because Bailey had no rovide a defendant, upon their motion, any statement or report made by a government witness that relates to the subject matter of the direct testimony of that witness. 18 U.S.C. § 3500. The government need not provide the statement, however, until after the witness testifies on direct examination. 18 U.S.C. § 3500(a). 6 . The district court’s ruling was essentially a discovery matter, which we review for an abuse of discretion. See, e.g., United States v. Byrne, 83 F.3d 984, 990 (8th Cir.1996); see also United States v. Phillips, 854 F.2d 273, 278 (7th Cir.1988) (<HOLDING>). But see United States v. Monroe, 943 F.2d

A: holding that the district court did not abuse its discretion in concluding that the fbi informants file contained no brady material not already provided to the defendant in a summary
B: holding that an fbi agents rough notes of an interview of the defendant were not brady material because there was no independent showing that they contained evidence that was material to the defendants guilt or innocence
C: holding that the alleged brady material was merely cumulative to the significant impeachment that already occurred during trial so there was no prejudice for a brady violation
D: holding a trial court did not abuse its discretion by failing to require disclosure of an informants name
A.