Answer:

The correct option is c) a stationary electric charge

Explanation:

The magnetic field is the area around a magnet where the magnetic force is delivered. The magnetic field lines can be estimated using a compass needle. The compass needle is deflected when it is above the magnetic field. The compass reveals the magnetic field direction.

Moving charges can both generate and encounter magnetic fields. However, the stationary charge from other magnetic fields cannot form or encounter magnetic fields. Since the moving charge causes the magnetic effects of current.