Event A and event B take a variable amount of time to complete. Event A and event B can both start before the other completes. If event A can not complete until event B completes and event B can not complete until event A completes, which of these statements are true?

Both events will always complete at the exact same time.

The event that starts later will complete first.

Event A and B will both take the same amount of time to complete.

It's possible for event A and event B to never complete.

Answer:
It's possible for event A and event B to never complete.

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