Calculate the magnitude of the electric field a distance of 5mm from a line charge with a linear charge density of 4nC/m. (epsilon_0 = 8.85x10⁻​¹² C²/Nm²)
A. 1.44x10⁴ N/C
B. 90.4 N/C
C. 127x10⁷ NIC
D. 14.39 N/C