[单选题]
When the rocket engines on t6tb5 mf uidwqo9mk;z hbn xik 4+q6 9+n:yih0;he starshig2 e 7h(kzp.gxp NO-PAIN-NO-GAIN are suddenly turned off, while traveling .(ex2pgh g7kzin empty space, the starship will
A. stop immediately.
B. slowly slow down, and then stop.
C. go faster and faster.
D. move with constant speed.
