The Set Union operation combines two lists into one that contains:

The Set Union operation is designed to merge two lists into a single list that contains just one version of each object from both lists. This means that if there are any duplicates between the two lists, they will only appear once in the resulting list, ensuring that the union contains unique entries.

The purpose of the Set Union operation is to eliminate redundancy, which is why unique objects from both lists are retained rather than all combinations or random selections. The focus is on providing a clean, merged list that accurately reflects all distinct entities from the initial lists.

While some options suggest capturing combinations or random objects, these are not characteristic of the Set Union operation, which is specifically tailored to create a unified set of unique items.