Answer:
Human knowledge grows out of Knowledge Doubling Curve. On average, human knowledge is doubling every 13 months.
I hope this helped you and if it did, please mark this answer as brainliest.
It helps you figure out what you want to investigate and how.
Hydrotherapy is the use of water in treatment
The best answer would be C) Reference section because if I were to walk in a library (which I have) I don't see encyclopedias in the fiction section cuz encyclopedias are REAL not fake, and an encyclopedia is NOT a biography book, and its not fiction either so its in the reference section.