4. Source #1: 1. "If people do not stop harvesting so many octopi from the ocean, they might become extinct," said Dr. Paul Cephal.
2. "Octopl may be endangered creatures."
Source #2:
1. "Octopi are definitely highly intelligent creatures."
2. "Octopl are very secretive."
3. "According to biological classification, octopl are cephalopod mollusks."
4. "Octopi inhabit coral reefs, which are endangered."
The sources above are most likely texts.
persuasive
entertaining
argumentative
illustrative
Informational/expository