Physics GRE GR 1777
5. Electrodynamics (Maxwell’s Equations)
Solution) In Maxwell’s equations, Ampère’s law (with Maxwell’s correction) is
.
We can write this equation as
,
where is the current (the electric displacement current). And
is change of electric fields with respect to the time (rate of change of the electric flux).
If we assume that , and the current flows through a surface S, then we can clearly see that the electric displacement current through S is proportional to the rate of change of the electric flux through S.
Therefore, the answer is (E).
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Another (and better) solution)
The definition of electric displacement current is
.
If you know this definition, the problem would be solved more easily.
Reference: https://en.wikipedia.org/wiki/Displacement_current