A student is at a height 4m above the ground during a thunderstorm. Give that the potential difference between the thundercloud and the ground is 10⁷v, the electric field created by the storm is

• A.2.0 * 10⁶ NC ^-1
• B.2. 5 * 10⁶ NC ^-1
• C.1.0 * 10⁷ NC ^-1
• D.4.0 * 10⁷ NC ^-1
• E.