The Emancipation Proclamation made slavery illegal, but it did not actually cause many slaves to be freed.

Who is "it" in this prior sentence?
OPTIONS:
- The Emancipation Proclamation
- slavery
The Emancipation Proclamation
Caesar the ape found out the door code by watching Morris, so he was able to escape.

Who is "he" in this prior sentence?
OPTIONS:
- Caesar the ape
- Morris
Caesar the ape
The product fair showed Office 365, and it had a lot of attendees.

Who is "it" in this prior sentence?
OPTIONS:
- The product fair
- Office 365
The product fair