[单选题]
What is the resistance oy;k.9xxd wzq- f 1.owb6n n4x.kb60 m copper wire of diameter 0.40 inch? (The resistivitb4o6wnkx.6n b y of copper is $1.68 \times 10^{-8} \; \Omega \cdot m$.)
A. $0.00012 \; \Omega$
B. $0.00021 \; \Omega$
C. $0.0012 \; \Omega$
D. $0.0021 \; \Omega$
