What Is the Magnitude of the Electric Field 2

Multiple Choice

What is the magnitude of the electric field 2.8 cm from a tiny object that carries an excess charge of -16 nC? (k = 1/4πε₀ = 9.0 × 10⁹ N ∙ m²/C²)

A) 180,000 N/C
B) 5100 N/C
C) 1.8 × 10¹⁴ N/C
D) -180,000 N/C
E) -5100 N/C