JEE Main 2018 Physics question

A body of mass M and charge q is connected to a spring of spring constant k. It is oscillating along x-direction about its equilibrium position, taken to be at x = 0, with an amplitude A. An electric field E is applied along the x-direction. Which of the following statements is correct?

• (A)The total energy of the system is Correct
• (B)The new equilibrium position is at a distance : from x = 0
• (C)The new equilibrium position is at a distance: from x = 0
• (D)The total energy of the system is