Select the correct answer. A test charge is placed at a distance of 2.5 × 10-2 meters from a charge of 6.4 × 10-5 coulombs. What is the electric field at the test charge? (k = 9.0 × 109 newton·meter2/coulomb2) A. 1.6 × 10-8 newtons/ coulomb B. 2.4 × 108 newtons/ coulomb C. 3.6 × 108 newtons/coulomb D. 4.2 × 108 newtons/coulomb E. 9.2 × 108 newtons/coulomb