Final answer:
Electric fields, produced by stationary electric charges, exert a force in the direction of the field on electric charges, causing attraction or repulsion, unlike magnetic fields which act on moving charges perpendicularly and form continuous closed loops.
Step-by-step explanation:
Electric fields and magnetic fields are both fundamental aspects of electromagnetism but have various distinct properties. Electric fields are produced by stationary electric charges and have field lines that begin on positive charges and terminate on negative charges, whereas magnetic fields are produced by moving electric charges (or changing electric fields) and form closed loops without beginning or end. One key difference between the two fields is that the electric force on a charge is in the direction of the electric field, while the magnetic force on a moving charge is always perpendicular to both the direction of motion and the magnetic field.
The correct answer to the question "What do electrical fields do that magnetic fields don't?" is (a) Cause the attraction or repulsion of electric charges. This is because electric field lines point away from positive charges and toward negative charges, indicating the direction of the force that would be exerted on a positive test charge placed in the field. Magnetic fields, on the other hand, exert a force on moving charges perpendicularly and cannot start or end on charges as no magnetic monopoles are known to exist.