The figure below shows four parallel plate capacitors: A, B, C, and D. Each capacitor carries the same charge q and has the same plate area A. As suggested by the figure, the plates of capacitor A and C are separated by a distance d while those of B and D are separated by a distance 2d. Capacitors A and B are maintained in vacuum while capacitors C and D contain dieelctrics with constant k = 5. Which list below places the capacitors in order of increasing capacitance?
A) A, B, C, D
B) B, A, C, D
C) A, B, D, C
D) B, A, D, C
E) D, C, B, A
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