[单选题]
Relative to a stationa3onyn:f,5s ee h4w f.lvjpm 86ry observet4 q. y*pr6i .iqk54bdsexm.ub 71zo ck 4wuj,r, 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.
