Which of the following quantities is a vector in character?

electric field
electric charge
electric energy
electric potential difference

Let us evaluate each of the given answers.
1. Electric field
An electric field is a vector because it has both magnitude and direction. An electric field is defined at a point in space to indicate the Coulomb force that a charged particle will experience, and the direction of the force.

2. Electric charge
The magnitude of the charge on a particle is a Coulomb. Because it is not defined in terms of direction, it is a scalar.

3. Electric energy
Electrical energy defines work done in moving a charged particle. A unit of work has no direction, and it is a scalar.

4. Electric potential difference
An electric potential difference, measured in volts,  defines the difference in electric potential energy between charged particles. It is a scalar.

 Electric field is a vector.

Then the answer would be d then