The Young's modulus of the material of a wire is \[2\times {{10}^{10}}N{{m}^{-2}}\]. If the elongation strain is 1 %, then the energy stored in the wire per unit volume in \[J{{m}^{-3}}\] is

• A. \[{{10}^{6}}\] 
• B. \[{{10}^{8}}\]
• C. \[2\times {{10}^{6}}\]
• D. \[2\times {{10}^{8}}\]