[单选题]
A measurement of an electron'sx/ 4sfs,ji834.tmp(n ty ibs dd5 rkbjryx1 ij(i1t /. speed is $2.0 \times 10^6 \; m/s$ and has an uncertainty of 10%. What is the minimum uncertainty in position?
A. $0.29 \; nm$
B. $0.58 \; nm$
C. $0.87 \; nm$
D. $1.2 \; nm$
