Which statement is true about the take method defined in the WatchService interface?

Question

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• ARetrieves and removes the next watch key, or returns null of none are present.
• BRetrieves and removes the next watch key. If a queued key is not immediately available, the program
• CRetrieves and removes the next watch key: waits if no key is yet present.
• DRetrieves and removes all pending events for the watch key, returning a list of the events that were retrieved.