What have Dr. Abraham Van Helsing, Quincey P. Morris, Dr. John Seward, and Arthur Holmwood done to save Miss Lucy Westenra? （ ）

A、Allofthemtaketurnstostayatherhousetoprotecther.
B、Theyallgivetheirbloodtoherfortransfusions.
C、Theydrapeherroom,bed,andneckwithgarlic.
D、Theysterilizetheboxesofearth.