A rod of length 2.4 m and radius 4.6 mm carries a negative charge of \[4.2\times {{10}^{-7}}C\] spread uniformly over it surface. The electric field near the mid-point of the rod, at a point on its surface is

• A. \[-\,8.6\times {{10}^{5}}N{{C}^{-1}}\]
• B. \[8.6\times {{10}^{4}}N{{C}^{-1}}\]
• C. \[-\,6.7\times {{10}^{5}}N{{C}^{-1}}\]
• D. \[6.7\times {{10}^{4}}N{{C}^{-1}}\]