[单选题]
If the accuracy in measuring the e79 t0aa2mc18zrj ocjvelocity ol (0nvfxt,)adq(2if nn uw 44pjv01hqf a particle increases, the accuracy in measuring its posjd0 xav4i 4p)qfw n21tqul,( h0vnf n(ition will
A. increase.
B. decrease.
C. remain the same.
D. be uncertain.