Read the following excerpt from a US court opinion:
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AND JUDGMENT TACHA, Circuit Judge. After examining the briefs and appellate record, this panel has determined unanimously to grant the parties’ request for a decision on the briefs without oral argument. See Fed.R.App.P. 34(f); 10th Cir.R. 34.1(G). The case is therefore ordered submitted without oral argument. Defendant Marco Antonio Arreola-Najera plea 6 (7th Cir.1992) . This circuit has not resolved the issue. As
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What is the most suitable continuation to the opinion? Your options are:
A. holding that note 9 does not preclude downward departure where defendant had no control over or knowledge of the highlevel purity of methamphetamine involved
B. holding that note 9 did not authorize downward departure based on drug purity
C. holding that the district courts denial of a downward departure was an exercise of discretion and therefore not reviewable
D. holding that district court did not have authority to depart downward under note 9 based on low purity of methamphetamine involved in case
E. holding that a defendants substance abuse or addiction does not justify a downward departure
Reply with [A, B, C, D, E] only.