In Python, what built-in data type represents an unordered, mutable collection of unique elements with no duplicates?
Answer and explanation
Correct answer: C. `set`
- Step 1: A Python `set` is an unordered collection that enforces uniqueness among its elements using hashing.
- Step 2: Any duplicate values inserted into a set are automatically discarded.
Answer
`set`.
Why not the others: '`list`' is an ordered mutable sequence that permits duplicates; '`tuple`' is an ordered immutable sequence; '`dictionary`' stores key-value pairs.
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