If negligibly small current is passed through a wire of length 15 m and resistance of \[5\Omega \], having uniform cross section of \[6\times {{10}^{-7}}{{m}^{2}}\], then coefficient of resistivity of material is

• A. \[1\times {{10}^{-7}}\Omega -m\]
• B. \[2\times {{10}^{-7}}\Omega -m\]
• C. \[3\times {{10}^{-7}}\Omega -m\]
• D. \[4\times {{10}^{-7}}\Omega -m\]