A positive point charge and a negative point charge of equal size sit in space. In which direction do the electric field lines point around each of these two charges?

1. Electric field direction is defined by the force it would exert on a positive test charge. 2. A positive test charge is pushed away from another positive charge, so field lines point away from positive sources. 3. A positive test charge is pulled toward a negative charge, so field lines point toward negative sources. 4. Options A and C ignore that the sign of the source charge sets the direction, which is the sign trap for field direction. _Source: OpenStax Physics (CC BY 4.0), Ch 18 "Static Electricity", section 18.3 Electric Field_