An allusion is a reference to a famous person or thing used to bring something to mind.
For example,
When someone says they were "shot by Cupid's arrow", they mean they fell in love with someone, and Cupid is often used to reference falling in love.
Hope that wasn't too confusing, lol.
Answer:
it means your friend is crazy
When you preview something, you inspect it. Previewing helps you get a glimpse of what's ahead before you read or something, kind of like skimming.
The answer would be a. semicolon because the semi-colon can be used to replace conjunctions in a sentence.
