Discrete Mathematics

Identify the correct definition of Union (set operation).

• A. The set of all possible subsets of a given set, including the empty set and the set itself.
• B. A principle stating that if more items are placed into fewer containers than the number of items, at least one container must hold more than one item.
• C. A set operation that combines all elements from two or more sets into a single set without duplication. ✓
• D. A function that is both one-to-one and onto, pairing every element uniquely.