Answer:
indicate a sudden change in thought
Explanation:
"The dash (–) is used to set off additional material within a sentence, often in order to emphasize it, to set off appositives that contain commas, or to indicate missing words."
He spent his time being an adventurer while also being being homeless)
Answer:
No one expected that outcome.
I think because is your best option.
"A. You know, of course, that she used to dive for her college swim team." does not have any errors in comma usage. "Of course" is almost always surrounded by commas.
