Answer: The correct answer is "East".
Step-by-step explanation:
The expression for the force due to the electric field on the charge is as follows;
F=qE
Here, F is the force, q is the charge and E is the electric field.
Electric field: It is defined as the force per unit charge. It is the area near the charge in which the electric force can be experienced.
The direction of the electric field for the positive charge is radially outward direction and the direction of the electric field for the negative charge is radially inward . The direction of the electric field is from positive charge to negative charge.
In the given problem, a negative charge is placed in an electric field that points west. The direction of the force on the negative particle is in east direction. It is opposite to the given direction of the electric field.
Therefore, the correct option is (D).