An Electron Is Sent at High Speed Toward a Gold

An electron is sent at high speed toward a gold nucleus (charge +79e) . What is the electrical force acting on the electron when it is 3.0*10 ^{- 13} m away from the gold nucleus? (e = 1.6 *10 ^{- 19} C, k_e = 8.99 * 10⁹ N·m²/C²)

A) 2.1 *10 ^{- 6} N
B) 2.0 * 10 ^{- 4} N
C) 0.20 N
D) 20 N