Read the following excerpt from a US court opinion:
```
and which did not provide any indication of the grounds on which it was based. We noted that a requirement that District Courts accompany such orders with some articulation of their reasoning would not impose a serious burden, would assist parties in crafting appellate briefs responsive to dis-positive issues, and would clearly frame appellate review. Thus, we exercised our supervisory power “to require the district courts in this circuit to accompany grants of summary judgment hereafter with an explanation sufficient to permit the parties and this court' to understand the legal premise for the court’s order.” Vadino, 903 F.2d at 259. Other situations in which we have established similar supervisory rules include, e.g., Sowell v. Butcher & Singer, Inc., 926 F.2d 289, 295 (3d Cir.1991)  (citation and internal quotation marks
```
What is the most suitable continuation to the opinion? Your options are:
A. holding defendants failure to file motion for judgment notwithstanding verdict did not prevent district court from granting motion for directed verdict for which court reserved decision
B. holding that a court entering a directed verdict pursuant to rule 50 should set forth an explanation sufficient to permit this court to understand the legal premise for the courts order
C. holding that appellate court will not remand a case to the district court for a violation of rule 50 if the district courts rationale is apparent from the record
D. holding that the trial court erred in granting the school boards posttrial motion for directed verdict because although the school board timely moved for a directed verdict during trial it did not serve its motion for directed verdict until the eleventh day after the verdict
E. holding that a trial court had the authority to impose a default judgment as a sanction for violating a rule 16 scheduling order pursuant to rule 37b2 stating we agree with the basic premise that a default sanction can under certain circumstances be an appropriate response to a violation of a rule 16 order after all the express terms of rule 37 permit a trial court to impose sanctions when a party fails to obey an order to provide or permit discovery
Reply with [A, B, C, D, E] only.