[单选题]
If the accuracy in measuring the position of a li+jbp,wtc1on 1;n ,vparticle increases76j:2fbmpq-lhq hsjckoq5 68, the accuracy in measuring its ve:jp 6hf- qo6chs lb72mqj5 8kqlocity will
A. increase.
B. decrease.
C. remain the same.
D. be uncertain.