[单选题]
A stationary proton is in a uniform magnetpvzf ; zl6v65aic field of 0.20 T. What is tb6mak p,l+ )k1ir a3mzhe magnitude of z3 mkmbka l,iar+p61) the magnetic force on the proton?
A. zero
B. $1.6 \times 10^{-20} \; N$
C. $3.2 \times 10^{-20} \; N$
D. $1.6 \times 10^{-21} \; N$
