Consider the following statements regarding field boundary conditions: 1. The tangential component of electric field is continuous across the boundary between two dielectrics. 2. The tangential component of electric field at a dielectric-conductor boundary is non-zero. 3. The discontinuity in the normal component of the flux density at a dielectric-conductor boundary is equal to the surface charge density on the conductor. 4. The normal component of the flux-density is continuous across the charge-free boundary between two dielectrics. Of these statements

• A. 1, 2 and 3 are correct
• B. 2, 3 and 4 are correct
• C. 1, 2 and 4 are correct
• D. 1, 3 and 4 are correct