The dimensions of magnetic flux are

Question

$\begin {array} {1 1} (a)\;[ML^2T^{-2}A^{-1}] & \quad (b)\;[ML^2T^{-1}A^{-1}] \\ (c)\;[ML^2T^{-2}A^{-2}] & \quad (d)\;[ML^1T^{-2}A^{-1}] \end {array}$