A metal wire that is $100\ \text{cm}$ long and has a cross-sectional area of $0.20\ \text{mm}^2$ has a resistance of $8.0\ \Omega$. What would the resistance be for another wire made from the same metal, with length $50\ \text{cm}$ and cross-sectional area $0.40\ \text{mm}^2$?
- A$2.0\ \Omega$
- B$8.0\ \Omega$
- C$16\ \Omega$
- D$32\ \Omega$