Which of the following is the dimensional formula for electric polarisation?
- A$[M^0 L^{-2} T^1 I^1]$
- B$[M^{-1} L^{-2} T^1 I^{-1}]$
- C$[M^0 L^{-1} T^1 I^1]$
- D$[M^1 L^{-2} T^1 I^1]$
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