What would an in-text citation include when the author of a source is unknown?

Which line would support the answer to the question of why malcom and donalbain feel they need to leave scotland

Plzzz me needs a hyphen or no hyphen 1. laura, a friendly little girl, says hello to everyone she passes 2. my uncle is well known jazz musician 3. our school's winning football record is welll known 4. the angry looking woman was having a heated discussion with the store manager.

Fine fellow, that lebrun," said arobin when robert had gone. "i never heard you speak of him.""i knew him last summer at grand isle," she replied.  what becomes apparent during this conversation? robert and arobin are both aware they are rivals for edna’s affections. arobin is unaware of robert’s role in edna’s life, but robert is aware of arobin’s role. robert is completely unaware of arobin’s romantic intentions and love for edna. robert has much more confidence in himself than arobin does.