A negative charge will naturally move from a region of low potential to high potential due to the properties of electric fields and the electrostatic force acting in the opposite direction to the field. This is analogous to the way positive charges are repelled from high potential and move towards lower potential regions.
A negative charge if free will tend to move from low potential to high potential. This is because electrical potential energy is inversely related to the potential for charged particles. Considering a negative charge, it will move towards regions of higher potential due to its fundamental properties and interactions with electric fields.
When discussing the movement of free charges, the key concept to consider is that like charges repel and opposite charges attract. In an electric field, a negative charge experiences a force in the direction opposite to that of the field's direction. This means that if a negative charge is free to move, it will be repelled from areas of low potential (more negative) and attracted towards areas of higher potential (less negative or positive).
Therefore, the correct answer is:
It moves toward regions of higher potential because its charge is negative.
In conclusion, the behaviour of negative charges in electric fields is predictable based on their inherent properties and the principles governing electrostatics, exemplified by their natural tendency to move from regions of lower potential to regions of higher potential.