[单选题]
An object moves in a1/qm,rv h, ( iyuyc: sr1ap;oz dir p54ehyqbn202asmr/ vection parallel to its length with a velocity that approaches the velocity of light0vasrmb/p 5q 2ne hy24. The width of this object, as measured by a stationary observer,
A. approaches infinity.
B. approaches zero.
C. increases slightly.
D. does not change.