Questions, Questions, Questions Part 1

Twilight was flying from her new castle to Canterlot, saddlebags holding a very special package...

The guards glanced over at Twilight, retracting their spears from the door, allowing Twilight in.

"Celestia! I have the package you asked of me!" Twilight called out, walking through the castle.

"Thank you, Twilight." Celestia squealed with delight as Twilight handed her the book.

"Wow, Celestia. You seem really happy about that book!" Twilight mused.

"This is no ordinary book, Twilight. This is the Book of Regeneration." Celestia responded, "Oh! And as for your reward for bringing me this, I will answer ANY 3 questions..."

Twilight pondered on what to ask...

AN: You guys get to choose the questions! But one at a time, PM me and which ever wins will be the question answered next time, then so on.

1. How did Ponies come into existance?

2. Why does she need the book?

3. How did Celestia & Luna originate?

4. Other: You make a question...