Answer:
The object would not move.
Step-by-step explanation:
In this case, two forces are acting on an object that is placed between two vectors i.e. 10 N and -10 N. The object is placed between these two forces. The forces acting on the object are balanced. In system of balanced forces, the net force acting on the object is equal to 0. As both forces have equal magnitude and the direction is opposite so that both forces cancel out each other.
As a result, the object would not move. Hence, the correct option is (d).