[单选题]
When the rocket engines on the starship NO-PAh4ibvj8- x0 fj jb,4niIN-NO-GAIN are sudde0bpw6 tjn-n5hk8pnj7nly turned off, w6n-07bnnw 8kj ph5ptjhile traveling in 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.