In order to slide a huge box lying on the ground in her room, Reshma should apply a force which is greater than which of the following forces?

To start sliding a stationary object, the applied force must overcome the static friction between the object and the surface. Static friction acts to oppose the initiation of motion. Gravitational and normal forces act vertically and do not oppose horizontal sliding. Muscular force is the force Reshma applies, not the opposing force. Hence, the applied force must exceed the static friction to start the box moving.