Determine the boundary conditions for the tangential and normal components of P at an interface between two perfect dielectric media with dielectric constants εr and εr2.
A. Tangential: P1 = P2, Normal: εr1P1 = εr2P2
B. Tangential: εr1P1 = εr2P2, Normal: P1 = P2
C. Tangential: P1 = P2, Normal: εr1P1 = εr2P2
D. Tangential: εr1P1 = εr2P2, Normal: P1 = P2