Final answer:
The force labeled A, which is applied farthest from point P, will provide the greatest torque.
Step-by-step explanation:
To resist a pull in direction X, the best anchored telegraph polo is the one that experiences the highest torque in that direction. Torque is a measure of the rotational force exerted on an object. The magnitude of torque depends on both the magnitude of the force and the distance between the point of application and the axis of rotation.
In the given scenario, if the object is anchored at point P, the force that will provide the greatest torque will be the force that is applied at the greatest distance from the point P. The force labeled A, which is applied farthest from point P, will provide the greatest torque.