C is out because the Court in DH Overmyer v Frick did not set the presumptions this way. E. A is possible under general Erie principles. C is possible if the state allows for certification. E. A is in because of Pennoyer. B is in, since property in the forum might be a factor in establishing general jurisdiction.
C is in because the suit is pure in rem.
E. A is in because venue over an alien is proper in any district. C is out because the doctrine is judicially created. C. Removal is by defendants only. A is out because of Ferens v John Deere . B is out because lack of subject matter jurisdiction can be raised by any party in the case at any time before the judgment becomes final.