[单选题]
A measurement of an a ;k,m o12xce zj8g,l 8p8crehel.5iv w)hkd8y ecl : m1g3ccim;ectron's 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. $1.2 \; nm$
