[单选题]
Relative to a stationary qkl*-45p m u)cf 8uqbu -ne oww:*-d7xkawufh i0kr..observer, a 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.
