Task: sc_casedisposition

What follows is an opinion from the Supreme Court of the United States. Your task is to identify the disposition of the case, that is, the treatment the Supreme Court accorded the court whose decision it reviewed. The information relevant to this variable may be found near the end of the summary that begins on the title page of each case, or preferably at the very end of the opinion of the Court. For cases in which the Court granted a motion to dismiss, consider "petition denied or appeal dismissed". There is "no disposition" if the Court denied a motion to dismiss.

Per Curiam.
In these cases, the United States Court of Appeals for the First Circuit upheld the District Court’s August 7, 1981, orders enjoining the Boston Police and Fire Departments from laying off policemen and firefighters in a manner that would reduce the percentage of minority officers below the level obtaining at the commencement of layoffs in July 1981. 679 F. 2d 965 (1982). These orders had the effect of partially superseding the operation of the State’s statutory last-hired, first-fired scheme for civil service layoffs, Mass. Gen. Laws Ann., ch. 31, § 39 (West 1979). Following the Court of Appeals’ decision, Massachusetts enacted legislation providing the city of Boston with new revenues, requiring reinstatement of all police and firefighters laid off during the reductions in force, securing these personnel against future layoffs for fiscal reasons, and requiring the maintenance of minimum staffing levels in the Police and Fire Departments through June 30, 1983. See 1982 Mass. Acts, ch. 190, § 25. In light of these changed circumstances, we vacate the judgment of the Court of Appeals and remand for consideration of mootness in light of 1982 Mass. Acts, ch. 190, § 25.
It is so ordered.
Justice Marshall took no part in the consideration or decision of these cases.

Question: What is the disposition of the case, that is, the treatment the Supreme Court accorded the court whose decision it reviewed?
A. stay, petition, or motion granted
B. affirmed (includes modified)
C. reversed
D. reversed and remanded
E. vacated and remanded
F. affirmed and reversed (or vacated) in part
G. affirmed and reversed (or vacated) in part and remanded
H. vacated
I. petition denied or appeal dismissed
J. certification to or from a lower court
K. no disposition
Answer:

Answer: E