The correct answer is: A. Electric intensity
Electric intensity is the electric field strength at a point. It is a vector quantity, meaning it has both magnitude and direction. The magnitude of the electric intensity is equal to the force per unit charge that would be experienced by a test charge placed at that point. The direction of the electric intensity is from the positive charge to the negative charge.
The electric potential at a point is the work done per unit charge in moving a test charge from infinity to that point. The electric potential gradient is the rate of change of the electric potential with distance. The negative of the electric potential gradient is equal to the electric intensity.
Magnetic flux is the total magnetic field passing through a surface. It is a scalar quantity, meaning it has only magnitude. The magnetic flux density is the magnetic flux per unit area. It is also a scalar quantity.
The electric intensity is not equal to the magnetic flux or the magnetic flux density.