[单选题]
Relative to a stationaroq ; q5qxxh/a 4vqf05uy observer, a7rw7ji4oeg10s 0 gxzmq2v, :xdv z6w q moving object
A. appears shorter than normal.
B. appears longer than normal.
C. keeps its same length time.
D. can do any of the above. It depends on the relative velocity between the observer and the object.
