[单选题]
What is the maximum value of the magnetidhj(:i ss37ixv3 b6jw7d g.ky c field at a dista:it : zy(0m35zbar/t0y38dg z szv ksbnce 2.5 m from a 100-W lighty5za / bm0s t:s:zbtg3ik d(rv8zyz03 bulb?
A. $0.20 \; mT$
B. $0.14 \; mT$
C. $0.10 \; mT$
D. $0.071 \; mT$
