It seems like you have made an error in your answer. The correct units for mass among the options you listed are grams (g), kilograms (kg), and pounds (lb). Slugs is not a correct unit for mass, but rather a unit for mass in the Imperial system. Slugs are typically used in engineering and physics, representing mass under the force of gravity. Therefore, the correct units for mass in the given options are g, lb, and kg.