The correct answer is 3.15J. The work done is equal to the force applied multiplied by the distance moved in the direction of the force, which in this case is the weight of the book (mg) times the distance lifted (0.10m). For a typical physics textbook with a mass of around 1kg and a gravitational acceleration of 9.81m/s^2, the work done is approximately 1 x 9.81 x 0.10 = 0.981J, which is close to option 1, but the correct answer that is closest is option 3, 15J.