Q: Valid English sentence (grammatically) or not: Who did Athena introduce who to?
OPTIONS:
- unacceptable
- acceptable

A: unacceptable

Q: Valid English sentence (grammatically) or not: Every essay she's written and that I've read is on that pile.
OPTIONS:
- unacceptable
- acceptable

A: unacceptable

Q: Valid English sentence (grammatically) or not: He looked at a book about swimming.
OPTIONS:
- unacceptable
- acceptable

A:
acceptable