Maxwell's equations establish the relationship between , , and at any point in a continuous medium. When we move from one medium to another, then which of the following statement/statements is/are correct?

• A. At the boundary separating the two media, the tangential components of and are continuous.
• B. At the boundary separating the two media, the tangential components of are continuous
• C. If there are surface charges present on the boundary, then normal component of is continuous
• D. If there are no surface charges then normal component of is discontinuous.