A wire has a length of $0.80\,\text{m}$ and a diameter of $5.0 \times 10^{-4}\,\text{m}$. Its $I$-$V$ characteristic is shown. What is the resistivity of the metal that the wire is made from?
- A$1.2 \times 10^{-7}\,\Omega\,\text{m}$
- B$1.6 \times 10^{-7}\,\Omega\,\text{m}$
- C$4.9 \times 10^{-7}\,\Omega\,\text{m}$
- D$2.0 \times 10^{-6}\,\Omega\,\text{m}$