Which of the following methods can be used to increase the torque acting on an object?

Torque is defined as the rotational equivalent of linear force and is calculated using the formula ( \text{Torque} = \text{Force} \times \text{Distance} ), where "Distance" refers to the perpendicular distance from the pivot point to the line of action of the force.

Increasing the torque can be achieved by either increasing the force applied to the object or increasing the distance from the pivot point at which that force is applied. This means that if you apply a greater force or apply a force further away from the pivot, the torque will increase proportionately.

For instance, if you think about using a wrench to turn a bolt, applying more force to the end of the wrench (increasing the force) or using a longer wrench (increasing the distance) will make it easier to turn the bolt, thus increasing the torque.

By enhancing either of these factors, you are effectively increasing the torque acting on the object, which makes option C the correct choice.