A log has a length of 2.0 m, a radius of 0.1 m, and a mass of 50 kg. If the density of water is 1.0, how much is the minimum amount of mass that can be added in order to cause the log to sink? a. 20 kg c. 10 kg b. 50 kg d. 0 kg   Please select the best answer from the choices provided A B C D