[单选题]
What is the magnetic0u7f.oisfy5k moment of a rectangular loop of , iezd78. alkhmlgt76 e(pmd5 120 turns that carries 6.0 A if its dim.7(mepd8, eda6 z5mli7ltgkhensions are 4.0 cm x 8.0 cm?
A. $0.23 \; A \cdot m^{2}$
B. $2.3 \; A \cdot m^{2}$
C. $23 \; A \cdot m^{2}$
D. $230 \; A \cdot m^{2}$
