13. The following figure shows two parallel plates. The graph indicates the potential at points between the two plates, with V₂ = 20 V at x₂ = 0.40 m and V₁ = 15 V at x1 = 0.30 m. An electron is released from rest at x₁, and that release point and the plate locations are aligned with the graph. What is the magnitude of the electric force (N) on the electron?

(A)
(B)
(C)
(D)
(E)

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