A、thE spACECrAFt will Fly DirECt to mErCury.
B．thE spACECrAFt will Fly thrEE timEs pAst mErCury.
C．thE spACECrAFt wAs lAunChED A wEEk lAtEr thAn plAnnE
D、
D、thErE is no spECiFiC tAsk For this journEy.