Answer :
Final answer:
From the given choices, the metric units for mass are Kilogram, Gram, and Hectogram. These are part of the metric system where each unit increases by a factor of ten.
Explanation:
In identifying the metric units of mass from the given options, the correct choices are C. Kilogram and D. Gram and H. Hectogram. These units are part of the metric system for measuring mass. The metric system is primarily used in science and engineering as it's categorized by factors of ten. The kilogram, for example, is one of the fundamental units in the metric system. The gram is exactly equal to 1/1000 of the mass of the kilogram, and the Hectogram is exactly equal to 100 grams or 1/10th of a kilogram.
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